Question

a body of mass 2 kg is moving on a horizontal surface with an initial velocity of 4 m per second comes to rest after 2 seconds what is the nature and magnitude of retarding force acting the body​

Answer 1

Explanation:

mass =2kg

u=4m\s

v=0 (as body comes to rest to rest )

F=ma

=m*{(v-u)/t}

=2*(2/2)

2N (mag )

force acting in opposite direction of motion to bring it to rest

Answer 2

Answer:

-4N is the correct answer for this question