If the collision is elastic, there is no loss in kinetic energies, which means that the total energies before and after impact are the same. So no need to worry about final velocities.
Final energy
= initial energy
= (1/2) (7.20*2.00^2+5.75*(-1.30)^2)
=19.26 joules
Answer: the total kinetic energy is 19.3 J. after collision.
Answer:
4 m/s
Explanation:
to find m/s, divide the meters term by the seconds term. 100m/25s = 4m/s
The dog's length, width, height, mass, volume, density, and color are the same in both places.
