NEET2003PhysicsMotion in One DimensionActual
If a ball is thrown vertically with speed u , the distance covered during the last t seconds of its ascent is:
Options
- Au t
- B1 2 g t^2
- Cu t- 1 2 g t^2
- D(u+g t) t
Correct answer
B. 1 2 g t^2
Step-by-step solution
Let time of flight be T , then T= u g Again Let h be the distance covered during last ' t ' second of its ascent. Velocity at point B =V_B=u-g(T-t)=u-g ( u g -t )=g t h=V_B t- 1 2 g t^2