Question

Two people push a car for 3 s with a combined net force of 200 N.
(b) If the car has a mass of 1200 kg, what will be its change in velocity?
(Ans: (b) 0.5 m/s)​

Answer 1

Explanation:

from this we get

time=3s

force=200N

Mass =1200kg

initial velocity =0ms-¹

using

newton 2nd law

F=MA

200=1200×V-U/T.

(ACCELERATION= RATE OF CHANGE OF MOMENTUM)

200=1200(V/3)

200=400×V

200/400= V

0.5=V

THERE FORE THE FINAL VELOCITY WILL BE

0.5M/S

*HOPE IT WILL HELP U*