Applications of Newton’s Laws
PHXI05:LAWS OF MOTION

363108 Two masses 8 \(kg\) 12 \(kg\) are connected at the two ends of a light inextensible string that goes over a frictionless pulley. The acceleration of the masses and the tension in the string when the masses are released, are respectively

1 \(2\,\,m/{s^2}\;{\rm{and}}\;\,90N\)
2 \(4\,m/{s^2}\;{\rm{and}}\;\,90N\)
3 \(2\,\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;60N\)
4 \(4\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;99N\)
PHXI05:LAWS OF MOTION

363109 A block is pulled upward with an acceleration \(5\,m/{s^2}\) with the help of a string of mass 2 \(kg\) and length 3 \(m\). The mass of the block is 3 \(kg\). The tension present in the string at a distance \(y\) from the top end is
supporting img

1 \((50 - 10\,y)N\)
2 \((75 - 10\,y)N\)
3 \((50 - 5\,y)N\)
4 \((75 - 5\,y)N\)
PHXI05:LAWS OF MOTION

363110 Three blocks of masses \(3\;kg,6\;kg,10\;kg\) are connected to each other with light string and are then placed on a frictionless surface. The system is pulled by a forced \(F=15 N\) then tension \(T_{1}\) is
supporting img

1 \(11\;N\)
2 \(6.91\;N\)
3 \(10.2\;N\)
4 \(12.63\;N\)
PHXI05:LAWS OF MOTION

363111 Three blocks of masses \({m_1} = 2.0\;kg,\) \({m_2} = 4.0\;kg\) and \({m_3} = 6.0\;kg\) are connected by strings on a frictionless inclined plane of \(60^{\circ}\), as shown in the figure. A force \(F=120 N\) is applied upward along the incline to the uppermost block, causing an upward movement of the blocks. The connecting cords are light. The values of tensions \(T_{1}\) and \(T_{2}\) in the cords are
supporting img

1 \({T_1} = 20\;N,{T_2} = 60\;N\)
2 \({T_1} = 60\;N,{T_2} = 60\;N\)
3 \({T_1} = 30\;N,{T_2} = 50\;N\)
4 \({T_1} = 20\;N,{T_2} = 100\;N\)
PHXI05:LAWS OF MOTION

363112 Three blocks of masses \(m_{1}, m_{2}\) and \(m_{3}\) are connected by massless strings as shown in the figure on a frictionless table. They are pulled with a force of \(40\;N\). If \({m_1} = 10\;kg,{m_2} = 6\;kg\) and \({m_3} = 4\;kg\), then tension \(T_{2}\) will be
supporting img

1 \(10\;N\)
2 \(20\;N\)
3 \(32\;N\)
4 \(40\;N\)
PHXI05:LAWS OF MOTION

363108 Two masses 8 \(kg\) 12 \(kg\) are connected at the two ends of a light inextensible string that goes over a frictionless pulley. The acceleration of the masses and the tension in the string when the masses are released, are respectively

1 \(2\,\,m/{s^2}\;{\rm{and}}\;\,90N\)
2 \(4\,m/{s^2}\;{\rm{and}}\;\,90N\)
3 \(2\,\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;60N\)
4 \(4\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;99N\)
PHXI05:LAWS OF MOTION

363109 A block is pulled upward with an acceleration \(5\,m/{s^2}\) with the help of a string of mass 2 \(kg\) and length 3 \(m\). The mass of the block is 3 \(kg\). The tension present in the string at a distance \(y\) from the top end is
supporting img

1 \((50 - 10\,y)N\)
2 \((75 - 10\,y)N\)
3 \((50 - 5\,y)N\)
4 \((75 - 5\,y)N\)
PHXI05:LAWS OF MOTION

363110 Three blocks of masses \(3\;kg,6\;kg,10\;kg\) are connected to each other with light string and are then placed on a frictionless surface. The system is pulled by a forced \(F=15 N\) then tension \(T_{1}\) is
supporting img

1 \(11\;N\)
2 \(6.91\;N\)
3 \(10.2\;N\)
4 \(12.63\;N\)
PHXI05:LAWS OF MOTION

363111 Three blocks of masses \({m_1} = 2.0\;kg,\) \({m_2} = 4.0\;kg\) and \({m_3} = 6.0\;kg\) are connected by strings on a frictionless inclined plane of \(60^{\circ}\), as shown in the figure. A force \(F=120 N\) is applied upward along the incline to the uppermost block, causing an upward movement of the blocks. The connecting cords are light. The values of tensions \(T_{1}\) and \(T_{2}\) in the cords are
supporting img

1 \({T_1} = 20\;N,{T_2} = 60\;N\)
2 \({T_1} = 60\;N,{T_2} = 60\;N\)
3 \({T_1} = 30\;N,{T_2} = 50\;N\)
4 \({T_1} = 20\;N,{T_2} = 100\;N\)
PHXI05:LAWS OF MOTION

363112 Three blocks of masses \(m_{1}, m_{2}\) and \(m_{3}\) are connected by massless strings as shown in the figure on a frictionless table. They are pulled with a force of \(40\;N\). If \({m_1} = 10\;kg,{m_2} = 6\;kg\) and \({m_3} = 4\;kg\), then tension \(T_{2}\) will be
supporting img

1 \(10\;N\)
2 \(20\;N\)
3 \(32\;N\)
4 \(40\;N\)
PHXI05:LAWS OF MOTION

363108 Two masses 8 \(kg\) 12 \(kg\) are connected at the two ends of a light inextensible string that goes over a frictionless pulley. The acceleration of the masses and the tension in the string when the masses are released, are respectively

1 \(2\,\,m/{s^2}\;{\rm{and}}\;\,90N\)
2 \(4\,m/{s^2}\;{\rm{and}}\;\,90N\)
3 \(2\,\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;60N\)
4 \(4\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;99N\)
PHXI05:LAWS OF MOTION

363109 A block is pulled upward with an acceleration \(5\,m/{s^2}\) with the help of a string of mass 2 \(kg\) and length 3 \(m\). The mass of the block is 3 \(kg\). The tension present in the string at a distance \(y\) from the top end is
supporting img

1 \((50 - 10\,y)N\)
2 \((75 - 10\,y)N\)
3 \((50 - 5\,y)N\)
4 \((75 - 5\,y)N\)
PHXI05:LAWS OF MOTION

363110 Three blocks of masses \(3\;kg,6\;kg,10\;kg\) are connected to each other with light string and are then placed on a frictionless surface. The system is pulled by a forced \(F=15 N\) then tension \(T_{1}\) is
supporting img

1 \(11\;N\)
2 \(6.91\;N\)
3 \(10.2\;N\)
4 \(12.63\;N\)
PHXI05:LAWS OF MOTION

363111 Three blocks of masses \({m_1} = 2.0\;kg,\) \({m_2} = 4.0\;kg\) and \({m_3} = 6.0\;kg\) are connected by strings on a frictionless inclined plane of \(60^{\circ}\), as shown in the figure. A force \(F=120 N\) is applied upward along the incline to the uppermost block, causing an upward movement of the blocks. The connecting cords are light. The values of tensions \(T_{1}\) and \(T_{2}\) in the cords are
supporting img

1 \({T_1} = 20\;N,{T_2} = 60\;N\)
2 \({T_1} = 60\;N,{T_2} = 60\;N\)
3 \({T_1} = 30\;N,{T_2} = 50\;N\)
4 \({T_1} = 20\;N,{T_2} = 100\;N\)
PHXI05:LAWS OF MOTION

363112 Three blocks of masses \(m_{1}, m_{2}\) and \(m_{3}\) are connected by massless strings as shown in the figure on a frictionless table. They are pulled with a force of \(40\;N\). If \({m_1} = 10\;kg,{m_2} = 6\;kg\) and \({m_3} = 4\;kg\), then tension \(T_{2}\) will be
supporting img

1 \(10\;N\)
2 \(20\;N\)
3 \(32\;N\)
4 \(40\;N\)
PHXI05:LAWS OF MOTION

363108 Two masses 8 \(kg\) 12 \(kg\) are connected at the two ends of a light inextensible string that goes over a frictionless pulley. The acceleration of the masses and the tension in the string when the masses are released, are respectively

1 \(2\,\,m/{s^2}\;{\rm{and}}\;\,90N\)
2 \(4\,m/{s^2}\;{\rm{and}}\;\,90N\)
3 \(2\,\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;60N\)
4 \(4\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;99N\)
PHXI05:LAWS OF MOTION

363109 A block is pulled upward with an acceleration \(5\,m/{s^2}\) with the help of a string of mass 2 \(kg\) and length 3 \(m\). The mass of the block is 3 \(kg\). The tension present in the string at a distance \(y\) from the top end is
supporting img

1 \((50 - 10\,y)N\)
2 \((75 - 10\,y)N\)
3 \((50 - 5\,y)N\)
4 \((75 - 5\,y)N\)
PHXI05:LAWS OF MOTION

363110 Three blocks of masses \(3\;kg,6\;kg,10\;kg\) are connected to each other with light string and are then placed on a frictionless surface. The system is pulled by a forced \(F=15 N\) then tension \(T_{1}\) is
supporting img

1 \(11\;N\)
2 \(6.91\;N\)
3 \(10.2\;N\)
4 \(12.63\;N\)
PHXI05:LAWS OF MOTION

363111 Three blocks of masses \({m_1} = 2.0\;kg,\) \({m_2} = 4.0\;kg\) and \({m_3} = 6.0\;kg\) are connected by strings on a frictionless inclined plane of \(60^{\circ}\), as shown in the figure. A force \(F=120 N\) is applied upward along the incline to the uppermost block, causing an upward movement of the blocks. The connecting cords are light. The values of tensions \(T_{1}\) and \(T_{2}\) in the cords are
supporting img

1 \({T_1} = 20\;N,{T_2} = 60\;N\)
2 \({T_1} = 60\;N,{T_2} = 60\;N\)
3 \({T_1} = 30\;N,{T_2} = 50\;N\)
4 \({T_1} = 20\;N,{T_2} = 100\;N\)
PHXI05:LAWS OF MOTION

363112 Three blocks of masses \(m_{1}, m_{2}\) and \(m_{3}\) are connected by massless strings as shown in the figure on a frictionless table. They are pulled with a force of \(40\;N\). If \({m_1} = 10\;kg,{m_2} = 6\;kg\) and \({m_3} = 4\;kg\), then tension \(T_{2}\) will be
supporting img

1 \(10\;N\)
2 \(20\;N\)
3 \(32\;N\)
4 \(40\;N\)
PHXI05:LAWS OF MOTION

363108 Two masses 8 \(kg\) 12 \(kg\) are connected at the two ends of a light inextensible string that goes over a frictionless pulley. The acceleration of the masses and the tension in the string when the masses are released, are respectively

1 \(2\,\,m/{s^2}\;{\rm{and}}\;\,90N\)
2 \(4\,m/{s^2}\;{\rm{and}}\;\,90N\)
3 \(2\,\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;60N\)
4 \(4\,{\rm{m/}}{{\rm{s}}^{\rm{2}}}\;{\mathop{\rm and}\nolimits} \;99N\)
PHXI05:LAWS OF MOTION

363109 A block is pulled upward with an acceleration \(5\,m/{s^2}\) with the help of a string of mass 2 \(kg\) and length 3 \(m\). The mass of the block is 3 \(kg\). The tension present in the string at a distance \(y\) from the top end is
supporting img

1 \((50 - 10\,y)N\)
2 \((75 - 10\,y)N\)
3 \((50 - 5\,y)N\)
4 \((75 - 5\,y)N\)
PHXI05:LAWS OF MOTION

363110 Three blocks of masses \(3\;kg,6\;kg,10\;kg\) are connected to each other with light string and are then placed on a frictionless surface. The system is pulled by a forced \(F=15 N\) then tension \(T_{1}\) is
supporting img

1 \(11\;N\)
2 \(6.91\;N\)
3 \(10.2\;N\)
4 \(12.63\;N\)
PHXI05:LAWS OF MOTION

363111 Three blocks of masses \({m_1} = 2.0\;kg,\) \({m_2} = 4.0\;kg\) and \({m_3} = 6.0\;kg\) are connected by strings on a frictionless inclined plane of \(60^{\circ}\), as shown in the figure. A force \(F=120 N\) is applied upward along the incline to the uppermost block, causing an upward movement of the blocks. The connecting cords are light. The values of tensions \(T_{1}\) and \(T_{2}\) in the cords are
supporting img

1 \({T_1} = 20\;N,{T_2} = 60\;N\)
2 \({T_1} = 60\;N,{T_2} = 60\;N\)
3 \({T_1} = 30\;N,{T_2} = 50\;N\)
4 \({T_1} = 20\;N,{T_2} = 100\;N\)
PHXI05:LAWS OF MOTION

363112 Three blocks of masses \(m_{1}, m_{2}\) and \(m_{3}\) are connected by massless strings as shown in the figure on a frictionless table. They are pulled with a force of \(40\;N\). If \({m_1} = 10\;kg,{m_2} = 6\;kg\) and \({m_3} = 4\;kg\), then tension \(T_{2}\) will be
supporting img

1 \(10\;N\)
2 \(20\;N\)
3 \(32\;N\)
4 \(40\;N\)