MHT CET2011PhysicsWork, Power and Energy
A sphere is suspended by a thread of length l What minimum horizontal velocity has to be imparted the ball for it to reach the height of the suspension?
Options
- Agl
- B2 gl
- C2 g l
- Dg l
Correct answer
D. g l
Step-by-step solution
KE given to a sphere at lowest point = potential energy at the height of suspension 1 2 m v²=m g l v= 2 g l