How much kinetic energy does a 7.2-kg dog need to make a vertical jump of 1.2 m? (the acceleration due to gravity is 9.8 m/s2.)

85 Joule (approx)

Potential energy at highest point

P.E = mgh = 7.2 kg × 9.8 m/s2×1.2 m≈85 Joule

This is the kinetic energy required for dog to jump a height of 1.2 m.

hope this helps!

a

explanation:

because they are cartillidge

positive reinforcement? ?