Question

A medicine ball is dropped from a height of 1 m. It strikes the ground with an energy of 50 J. What is the mass of the medicine ball?

Answer 1

5 kg

Step-by-step explanation:

PE = KE

mgh = KE

m (9.8 m/s²) (1 m) = 50 J

m = 5.1 kg

Rounded to one significant figure, the mass is 5 kg.