Question

a body of mass 5kg moving with a velocity of 10m/s having acceleration 20m/s² find its kinetic energy after 10s​

Answer 1

Explanation:

v= u+at

v= 10+20×10

v= 210m/s

K.E= 1/2 mv^2....

.(assuming that mass is constant)

K.E = 1/2 ×5 × 44100

K.E = 110250