Question

Billy drops a watermelon form the top of a three -story building, 10 m above the sidewalk. How fast is the watermelon moving when it hits the ground?​

Answer 1

Answer:

v = 14 m/s

Explanation:

Potential energy = Kinetic energy

mgh = 1/2mv^2

cancelling m on both sides and putting values

9.8 × 10 = 0.5 × v^2

198 = v^2

v = 14