Answered

The potential energy of a 40-kg cannon ball is 14000 J. How high was the cannon to have this much potential energy?

Sagot :

13ryviz

Answer:

35.7m

Explanation:

Potential energy is equal to = mass x gravity x height . p = mgh ; p is 14000j(kg.m².s^-2), m is 40kg, and g is 9.8 m/s² ; deriving the equation ; height = 14000 / 40 × 9.8 ; h = 1400 / 392 ; h = 35.7 m