JEE Main2005PhysicsWork, Power and EnergyActual
A body of mass m is accelerated uniformly from rest to a speed v in a time T . The instantaneous power delivered to the body as a function time is given by
Options
- Amv ^2 ~T ^2 t
- Bm v^2 T^2 t^2
- C1 2 mv ^2 ~T ^2 t
- D1 2 mv ^2 ~T ^2 t ^2
Correct answer
A. mv ^2 ~T ^2 t
Step-by-step solution
P =( ma ) v =m a^2 t=m V^2 T^2 t