Question

The force required to impart to a car a velocity of 30m/s in 10 sec starting from rest if the mass of the car is
1500kg is –
a. -4500N, b. 4500N, c. 45000N, d. 450N.

Answer 1

hi friend,

from newton second law of motion


f×t=m(v-u)

f=m(v-u)/t

=1500(30-0)/10

=4500N

I hope this will help u :)

Answer 2

HI there !!

Force = F

Mass = m = 1500 kg

Initial velocity = u = 0

Final velocity = v = 30 m/s


Force = m(v-u)/t

= 1500 x 30/10

= 4500 N