Applications of Newton’s Laws
PHXI05:LAWS OF MOTION

363091 In the figure, block \(A\) and \(B\) of masses \(2 m\) and \(m\) are connected with a string and system is hanged vertically with the help of a spring. Spring has negligible mass. Find out magnitude of acceleration of masses \(2 m\) and \(m\) just after the instant when the string of mass \(m\) is cut
supporting img

1 \(g, g\)
2 \(g, \dfrac{g}{2}\)
3 \(\dfrac{g}{2}, g\)
4 \(\dfrac{g}{2}, \dfrac{g}{2}\)
PHXI05:LAWS OF MOTION

363092 Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 \(m\)?
supporting img

1 \(0\)
2 \(3\,g/2\)
3 \(g\)
4 \(2\,g\)
PHXI05:LAWS OF MOTION

363093 A body of mass \(5\;kg\) is suspended by a spring balance on an inclined plane as shown in figure.
supporting img
So, force applied as spring balance is

1 \(50\;N\)
2 \(25\;N\)
3 \(500\;N\)
4 \(10\;N\)
PHXI05:LAWS OF MOTION

363094 Two masses of 10 \(kg\) and 20 \(kg\) respectively, are connected by a light spring as shown in the figure. A force of 200 \(N\) acts upon the 20 \(kg\) mass. At the instant shown, the 10 \(kg\) mass has acceleration of \(12\,m/{s^2}\). The acceleration of 20 \(kg\) mass is:
supporting img

1 \(12\,m/{s^2}\)
2 \(4\,m/{s^2}\)
3 \(10\,m/{s^2}\)
4 \({\rm{Zero}}\)
PHXI05:LAWS OF MOTION

363091 In the figure, block \(A\) and \(B\) of masses \(2 m\) and \(m\) are connected with a string and system is hanged vertically with the help of a spring. Spring has negligible mass. Find out magnitude of acceleration of masses \(2 m\) and \(m\) just after the instant when the string of mass \(m\) is cut
supporting img

1 \(g, g\)
2 \(g, \dfrac{g}{2}\)
3 \(\dfrac{g}{2}, g\)
4 \(\dfrac{g}{2}, \dfrac{g}{2}\)
PHXI05:LAWS OF MOTION

363092 Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 \(m\)?
supporting img

1 \(0\)
2 \(3\,g/2\)
3 \(g\)
4 \(2\,g\)
PHXI05:LAWS OF MOTION

363093 A body of mass \(5\;kg\) is suspended by a spring balance on an inclined plane as shown in figure.
supporting img
So, force applied as spring balance is

1 \(50\;N\)
2 \(25\;N\)
3 \(500\;N\)
4 \(10\;N\)
PHXI05:LAWS OF MOTION

363094 Two masses of 10 \(kg\) and 20 \(kg\) respectively, are connected by a light spring as shown in the figure. A force of 200 \(N\) acts upon the 20 \(kg\) mass. At the instant shown, the 10 \(kg\) mass has acceleration of \(12\,m/{s^2}\). The acceleration of 20 \(kg\) mass is:
supporting img

1 \(12\,m/{s^2}\)
2 \(4\,m/{s^2}\)
3 \(10\,m/{s^2}\)
4 \({\rm{Zero}}\)
PHXI05:LAWS OF MOTION

363091 In the figure, block \(A\) and \(B\) of masses \(2 m\) and \(m\) are connected with a string and system is hanged vertically with the help of a spring. Spring has negligible mass. Find out magnitude of acceleration of masses \(2 m\) and \(m\) just after the instant when the string of mass \(m\) is cut
supporting img

1 \(g, g\)
2 \(g, \dfrac{g}{2}\)
3 \(\dfrac{g}{2}, g\)
4 \(\dfrac{g}{2}, \dfrac{g}{2}\)
PHXI05:LAWS OF MOTION

363092 Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 \(m\)?
supporting img

1 \(0\)
2 \(3\,g/2\)
3 \(g\)
4 \(2\,g\)
PHXI05:LAWS OF MOTION

363093 A body of mass \(5\;kg\) is suspended by a spring balance on an inclined plane as shown in figure.
supporting img
So, force applied as spring balance is

1 \(50\;N\)
2 \(25\;N\)
3 \(500\;N\)
4 \(10\;N\)
PHXI05:LAWS OF MOTION

363094 Two masses of 10 \(kg\) and 20 \(kg\) respectively, are connected by a light spring as shown in the figure. A force of 200 \(N\) acts upon the 20 \(kg\) mass. At the instant shown, the 10 \(kg\) mass has acceleration of \(12\,m/{s^2}\). The acceleration of 20 \(kg\) mass is:
supporting img

1 \(12\,m/{s^2}\)
2 \(4\,m/{s^2}\)
3 \(10\,m/{s^2}\)
4 \({\rm{Zero}}\)
PHXI05:LAWS OF MOTION

363091 In the figure, block \(A\) and \(B\) of masses \(2 m\) and \(m\) are connected with a string and system is hanged vertically with the help of a spring. Spring has negligible mass. Find out magnitude of acceleration of masses \(2 m\) and \(m\) just after the instant when the string of mass \(m\) is cut
supporting img

1 \(g, g\)
2 \(g, \dfrac{g}{2}\)
3 \(\dfrac{g}{2}, g\)
4 \(\dfrac{g}{2}, \dfrac{g}{2}\)
PHXI05:LAWS OF MOTION

363092 Two blocks are connected by a spring. The combination is suspended, at rest, from a string attached to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2 \(m\)?
supporting img

1 \(0\)
2 \(3\,g/2\)
3 \(g\)
4 \(2\,g\)
PHXI05:LAWS OF MOTION

363093 A body of mass \(5\;kg\) is suspended by a spring balance on an inclined plane as shown in figure.
supporting img
So, force applied as spring balance is

1 \(50\;N\)
2 \(25\;N\)
3 \(500\;N\)
4 \(10\;N\)
PHXI05:LAWS OF MOTION

363094 Two masses of 10 \(kg\) and 20 \(kg\) respectively, are connected by a light spring as shown in the figure. A force of 200 \(N\) acts upon the 20 \(kg\) mass. At the instant shown, the 10 \(kg\) mass has acceleration of \(12\,m/{s^2}\). The acceleration of 20 \(kg\) mass is:
supporting img

1 \(12\,m/{s^2}\)
2 \(4\,m/{s^2}\)
3 \(10\,m/{s^2}\)
4 \({\rm{Zero}}\)
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