Question

Two people push a car of mass 1500 kgs for 5 seconds with a combined net force of 150 N. Calculate the impulse provided to the car and also find the change in velocity of the car.

Answer 1

mass of car = 1500kg

time = 5 seconds

force = 150N

velocity of car = ?

impulse of the car = ?

1. impulse of an object = force * time

                                     = 150*5

                                     = 750 Nsec

2. velocity = ?

f =ma

f=m(v-u/t)

f=150n

m= 1500kg

v=?

u=0m/s

t= 5 sec

a.t.q

150 = 1500(v-0/5)

150=0*v

v=15 m/s

hope will help.....