Question

a car moves with a velocity of 40 m/s . at this time the driver applied the break and the car stopped after covering 200 metres on a straight road . calculate the acceleration of car​

Answer 1

Answer:

S=ut+½at²

acceleration of car is,

here u=0

S= 200 m

t=40m/s

a=?

200=800a

a=200÷800

a=0.25