A particle of mass starts from rest at and is acted on by a time-dependent force…

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A particle of mass

2\,\text{kg}

starts from rest at

t=0

and is acted on by a time-dependent force

F = 10t\,\text{N}

along a straight line. At what time will the magnitude of its momentum reach

40\,\text{kg\,m\,s}^{-1}

? (a)

2.0\,\text{s}

(b)

5.7\,\text{s}

(c)

2.8\,\text{s}

(d)

4.0\,\text{s}