Question

A body is acted on by a force given by F=(10+2t)N.The impulse received by the body during the first four seconds is

Answer 1

Answer:

Impulse J = $\int\limits^t_0{F} \, dt$

Here,

F = 10+2t N

J = $\int\limits^4_0{(10+2t)} \, dt$ = $[10t + t^2]^4_0 = [(40+16)-(0)] = 56N.s$

J = 56N.s