Home
Class 11
PHYSICS
A person brings a mass of 1 kg infinity ...

A person brings a mass of 1 kg infinity to a point A. Initially the mass was at rest but it moves at a speed of `2 ms^(-1)` as it reached A. The work done by the person on the mass is `-3J`. The potential at A is

A

`-3Jkg^-1`

B

`-2Jkg^-1`

C

`-5Jkg^-1`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    HC VERMA ENGLISH|Exercise Objective -2|6 Videos

  • GRAVITATION

    HC VERMA ENGLISH|Exercise Exercises|39 Videos

  • GRAVITATION

    HC VERMA ENGLISH|Exercise worked out Examples|13 Videos

  • FRICTION

    HC VERMA ENGLISH|Exercise Questions for short Answer|11 Videos

  • HEAT AND TEMPERATURE

    HC VERMA ENGLISH|Exercise Objective 2|6 Videos

Similar Questions

Explore conceptually related problems

A person brings a mass of 1 kg from infinity to a point . Initally the mass was at rest but it moves at a speed of 2 ms^-1 as it reaches A. The work done by the person on the mass is -3J. The potential at A is

A person brings a mass of 1 kg from infinity to a point A . Initially the mass was at rest but it moves with a speed of 2 m//s as it reaches A . The work done by the person on a mass is -3 J . The potential of A is:

A person brings a mass of 1 kg from infinity to a point A . Initially the mass was at rest but it moves with a speed of 2 m//s as it reaches A . The work done by the person on a mass is -3 J . The potential of A is:

A person brings a mass of 1 kg from infinity to a point A . Initially the mass was at rest but it moves with a speed of 2 m//s as it reaches A . The work done by the person on a mass is -3 J . The potential of A is:

A person brings a mass of 1 kg from infinty to a point A . Initially, the mass was at rest but it moves at a speed of 3 m//s as it reaches A . The work done by the person on the mass is - 5.5 J . The gravitational potential at A is a) -1 J/kg b) -4.5 J/kg c) -5.5 J/kg d) -10 J/kg

A person brings a mass 2kg from A to B . The increase in kinetic energy of mass is 4J and work done by the person on the mass is -10J . The potential difference between B and A is ...... J//kg

A body of mass 1kg is taken from infinity to a point P. When the body reaches that point, it has a speed of 2ms^-1 . The work done by the conservative force is -5J . Which of the following is true (assuming non-conservative and pseudo-forces to be absent).

A stone of mass 20 g falling from height of 2 km hits the ground with a speed of 200 ms^-1 . The work done by the gravitational force is

A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1) . What is the work done ?

A person of mass 70kg jumps from a stationary helicopter with the parachute open. As he falls through 50m height, he gains a speed of 20ms^-1 . The work done by the viscous air drag is