Question

A car of 1200 kg is moving with a velocity of 90 km per hour . its velocity decreases to 18 km per hour in 4 sec. find the force

Answer 1

Answer:

F=1500 N

Explanation:

F= m(v-u)/t

m= 1200 kg

v= 90km/h = 25 m/s

u= 90km/h - 18 km/h =20m/s

t = 4s

F ={1200 (25 - 20)}/4

= 1200×5/4

= 1500 N