Momentum of a ball of mass 1.5 kg is 30 kg m/s. Find its kinetic energy. If a force changes its speed to 25 m/s, find the work done by this force.
Answers
Answered by
0
Answer:
m=masa× velocity
30=1.5×x
x=30/1.5
x=20
velocity=20
KE=1/2×mass ×velocity
KE=1/2×1.5×20
KE=15
Similar questions