Question

A constant retarding force of 50 N is applied to a body of
mass 10 kg moving initially with a speed of 10 ms. The
body comes to rest after
(a) 2s
(b) 4 s
(C) 65
(d) 8s​

Answer 1

Answer:

answer in attachment

Answer 2

Answer:

2s

Explanation:

look it is simple as we know F=MA

and F is 50N and M is 10Kg therefore

A=F÷M

a=50÷10

a=5 m/s

and as retarding it is -5 m/s

therefore every second the speed reduce by 5

and so it takes two second to be 0

HIT 5 STAR