Question

find the force that can stop a body to rest in 5 seconds from its initial velocity of 15m/s the mass of body is 5kg​

Answer 1

Answer:

Force=-15N

Explanation:

Data:

f=?

vi=15m/s

vf=0m/s

m=5kg

t=5sec

solution:

To find force F=ma now first find "a"

vf=vi+at

o=15+a(5)

-15=5a

-15/5=a

a=-3m/s²

Now find force

F=ma

F=(5)(-3)

F=-15N