Question

mass 5 kg initially at rest is subjected a force of 20 Newton what is the kinetic energy acquired by the body at the end of 10 seconds​

Answer 1

mass =5kg

initial velocity=0m/s

final velocity=?

force applied=20N

time taken=10s

using formula

F=ma

20=5*final velocity

20/5=final velocity

final velocity=4m/s

v=4m/s

kinetic energy=1/2mv^2

=1/2*5*4*4

kinetic energy=40J

hope it helps u ☺️

Answer 2

Answer:

40J

Explanation:

mass 5 kg initially at rest is subjected a force of 20 Newton what is the kinetic energy acquired by the body at the end of 10 seconds