A unidirectional force F varying with time t as shown in the Fig. acts on a body initially at rest for a short duration 2T. Then the velocity acquired by the body is

A unidirectional force F varying with time t as shown in the Fig. acts

1.	A unidirectional force F varying with time t as shown in the Fig. acts on a body initially at rest for a short duration 2T. Then the velocity acquired by the body is
Answer» `(piF_(0)T)/(4m)` `(piF_(0)T)/(2m)` `(F_(0)T)/(4m)` zero Solution :From O to T, area is `(+)` ve and from T to 2T, area is `(-)`ve, NET area is zero, hence, no CHANGE in MOMENTUM.