JEE Main2006PhysicsWork, Power and EnergyActual
A particle of mass 100 ~g is thrown vertically upwards with a speed of 5 ~m / s . the work done by the force of gravity during the time the particle goes up is
Options
- A0.5 ~J
- B-0.5 ~J
- C-1.25 ~J
- D1.25 ~J
Correct answer
C. -1.25 ~J
Step-by-step solution
-m g h=-m g ( v^2 2 g )=-1.25 ~J