Question

A body of mass 2 kg travels according to the law x(t) = pt + qt2 + rt3. Where p=3m/s,

q = 4m/s2 and r = 5 m/s2. The force acting on the body at t=2s is :-

a. 136N b. 134N c. 158N d. 68N​

Answer 1

$\huge\mathcal\pink{\dag Answer \dag}$

OPTION (D)

The force acting on the body of mass 2 kg is

F=ma=136N