Question

a body of mass 10 km is moving with the constant velocity of 10metre per second .when a constant force acts for a 4 second on it.it moves with a velocity 2 metre per second in the opposite direction.what is the acceleration​

Answer 1

Answer:

-2m/s

Explanation:

In the given question we have to find aceeleration

so we just put on the vaiue of intial velocity and final velocity and not bother about direction

HERE

u= 10m/s

v= 2m/s

a= v-u/t

=2-10/4

= -8/4m/s

= -2m/s