Question

A force of 60N acts on a body for 4s and the body acquires a velocity of 25m/s .What is the mass of the body?

Answer 1

GIVEN,

FORCE=60 N

INITIAL VELOCITY(u)=Om/s

FINAL VELOCITY (v)=25m/s

AND,TIME (t)=4s

THEREFORE,ACCELARATION(a)=(v-u)/t=(25-0)m/s÷4s=6.25m/s^

ATQ TO NEWTON'S SECOND LAW OF MOTION,WE HAVE

F=M×A

or,M=F/A

or,M=60N/6.25m/s^

or,M=96kg,

HENCE,THE MASS OF THE BODY=96kg.

HOPE IT HELPS YOU