Applications of Newton’s Laws
« First Topic in Next Topic: Circular Motion »
PHXI05:LAWS OF MOTION

363168 Read the Statement - A and Statement - B carefully to mark the correct options given below:
Statement A :
An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement B :
Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.

1 Statement A is incorrect but Statement B is correct.
2 Statement A is correct but Statement B is incorrect.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE - 2023
PHXI05:LAWS OF MOTION

363169 A block of mass \(m\) is placed on a smooth wedge of inclination \(\theta .\) The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (\(g\) is acceleration due to gravity) will be

1 \(mg\cos \theta \)
2 \(mg\sin \theta \)
3 \(mg\)
4 \(mg/\cos \theta \)
PHXI05:LAWS OF MOTION

363170 A lift is going up with uniform velocity. When brakes are applied, it slows down. A person in that lift, experiences

1 More weight
2 Less weight
3 Normal weight
4 Zero weight
PHXI05:LAWS OF MOTION

363171 A balloon with mass \(m\) is descending down with an acceleration \(a\) (where \(a < g\)). How much mass should be removed from it so that it starts moving up with an acceleration \(a\)

1 \(\frac{{ma}}{{g + a}}\)
2 \(\frac{{ma}}{{g - a}}\)
3 \(\frac{{2\,ma}}{{g + a}}\)
4 \(\frac{{2\,ma}}{{g - a}}\)
PHXI05:LAWS OF MOTION

363172 In a non-inertial frame, the second law of motion is written as

1 \(F=m a\)
2 \(F=m a+F_{p}\)
3 \(F=m a-F_{p}\)
4 \(F=2 m a\)
where, \(F_{p}\) is pseudo-force while \(a\) is the acceleration of the body relative to the non-inertial frame.
Join With Us for More Updates
PHXI05:LAWS OF MOTION

363168 Read the Statement - A and Statement - B carefully to mark the correct options given below:
Statement A :
An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement B :
Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.

1 Statement A is incorrect but Statement B is correct.
2 Statement A is correct but Statement B is incorrect.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE - 2023
PHXI05:LAWS OF MOTION

363169 A block of mass \(m\) is placed on a smooth wedge of inclination \(\theta .\) The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (\(g\) is acceleration due to gravity) will be

1 \(mg\cos \theta \)
2 \(mg\sin \theta \)
3 \(mg\)
4 \(mg/\cos \theta \)
PHXI05:LAWS OF MOTION

363170 A lift is going up with uniform velocity. When brakes are applied, it slows down. A person in that lift, experiences

1 More weight
2 Less weight
3 Normal weight
4 Zero weight
PHXI05:LAWS OF MOTION

363171 A balloon with mass \(m\) is descending down with an acceleration \(a\) (where \(a < g\)). How much mass should be removed from it so that it starts moving up with an acceleration \(a\)

1 \(\frac{{ma}}{{g + a}}\)
2 \(\frac{{ma}}{{g - a}}\)
3 \(\frac{{2\,ma}}{{g + a}}\)
4 \(\frac{{2\,ma}}{{g - a}}\)
PHXI05:LAWS OF MOTION

363172 In a non-inertial frame, the second law of motion is written as

1 \(F=m a\)
2 \(F=m a+F_{p}\)
3 \(F=m a-F_{p}\)
4 \(F=2 m a\)
where, \(F_{p}\) is pseudo-force while \(a\) is the acceleration of the body relative to the non-inertial frame.
For More Updates join with Us
PHXI05:LAWS OF MOTION

363168 Read the Statement - A and Statement - B carefully to mark the correct options given below:
Statement A :
An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement B :
Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.

1 Statement A is incorrect but Statement B is correct.
2 Statement A is correct but Statement B is incorrect.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE - 2023
PHXI05:LAWS OF MOTION

363169 A block of mass \(m\) is placed on a smooth wedge of inclination \(\theta .\) The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (\(g\) is acceleration due to gravity) will be

1 \(mg\cos \theta \)
2 \(mg\sin \theta \)
3 \(mg\)
4 \(mg/\cos \theta \)
PHXI05:LAWS OF MOTION

363170 A lift is going up with uniform velocity. When brakes are applied, it slows down. A person in that lift, experiences

1 More weight
2 Less weight
3 Normal weight
4 Zero weight
PHXI05:LAWS OF MOTION

363171 A balloon with mass \(m\) is descending down with an acceleration \(a\) (where \(a < g\)). How much mass should be removed from it so that it starts moving up with an acceleration \(a\)

1 \(\frac{{ma}}{{g + a}}\)
2 \(\frac{{ma}}{{g - a}}\)
3 \(\frac{{2\,ma}}{{g + a}}\)
4 \(\frac{{2\,ma}}{{g - a}}\)
PHXI05:LAWS OF MOTION

363172 In a non-inertial frame, the second law of motion is written as

1 \(F=m a\)
2 \(F=m a+F_{p}\)
3 \(F=m a-F_{p}\)
4 \(F=2 m a\)
where, \(F_{p}\) is pseudo-force while \(a\) is the acceleration of the body relative to the non-inertial frame.
NEET DIGITAL LIBRARY
PHXI05:LAWS OF MOTION

363168 Read the Statement - A and Statement - B carefully to mark the correct options given below:
Statement A :
An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement B :
Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.

1 Statement A is incorrect but Statement B is correct.
2 Statement A is correct but Statement B is incorrect.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE - 2023
PHXI05:LAWS OF MOTION

363169 A block of mass \(m\) is placed on a smooth wedge of inclination \(\theta .\) The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (\(g\) is acceleration due to gravity) will be

1 \(mg\cos \theta \)
2 \(mg\sin \theta \)
3 \(mg\)
4 \(mg/\cos \theta \)
PHXI05:LAWS OF MOTION

363170 A lift is going up with uniform velocity. When brakes are applied, it slows down. A person in that lift, experiences

1 More weight
2 Less weight
3 Normal weight
4 Zero weight
PHXI05:LAWS OF MOTION

363171 A balloon with mass \(m\) is descending down with an acceleration \(a\) (where \(a < g\)). How much mass should be removed from it so that it starts moving up with an acceleration \(a\)

1 \(\frac{{ma}}{{g + a}}\)
2 \(\frac{{ma}}{{g - a}}\)
3 \(\frac{{2\,ma}}{{g + a}}\)
4 \(\frac{{2\,ma}}{{g - a}}\)
PHXI05:LAWS OF MOTION

363172 In a non-inertial frame, the second law of motion is written as

1 \(F=m a\)
2 \(F=m a+F_{p}\)
3 \(F=m a-F_{p}\)
4 \(F=2 m a\)
where, \(F_{p}\) is pseudo-force while \(a\) is the acceleration of the body relative to the non-inertial frame.
Join With Us for More Updates
PHXI05:LAWS OF MOTION

363168 Read the Statement - A and Statement - B carefully to mark the correct options given below:
Statement A :
An elevator can go up or down with uniform speed when its weight is balanced with the tension of its cable.
Statement B :
Force exerted by the floor of an elevator on the foot of a person standing on it is more than his/her weight when the elevator goes down with increasing speed.

1 Statement A is incorrect but Statement B is correct.
2 Statement A is correct but Statement B is incorrect.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE - 2023
PHXI05:LAWS OF MOTION

363169 A block of mass \(m\) is placed on a smooth wedge of inclination \(\theta .\) The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (\(g\) is acceleration due to gravity) will be

1 \(mg\cos \theta \)
2 \(mg\sin \theta \)
3 \(mg\)
4 \(mg/\cos \theta \)
PHXI05:LAWS OF MOTION

363170 A lift is going up with uniform velocity. When brakes are applied, it slows down. A person in that lift, experiences

1 More weight
2 Less weight
3 Normal weight
4 Zero weight
PHXI05:LAWS OF MOTION

363171 A balloon with mass \(m\) is descending down with an acceleration \(a\) (where \(a < g\)). How much mass should be removed from it so that it starts moving up with an acceleration \(a\)

1 \(\frac{{ma}}{{g + a}}\)
2 \(\frac{{ma}}{{g - a}}\)
3 \(\frac{{2\,ma}}{{g + a}}\)
4 \(\frac{{2\,ma}}{{g - a}}\)
PHXI05:LAWS OF MOTION

363172 In a non-inertial frame, the second law of motion is written as

1 \(F=m a\)
2 \(F=m a+F_{p}\)
3 \(F=m a-F_{p}\)
4 \(F=2 m a\)
where, \(F_{p}\) is pseudo-force while \(a\) is the acceleration of the body relative to the non-inertial frame.