Conversion of Energy

Question

Jared is skateboarding at the park. He is moving at 7 m/s when he begins traveling up a ramp. The combined mass of Jared and the skateboard is 51 kg. How high will he go up the ramp, in m? (Round your answer to one decimal place if necessary.)

Answer 1

mv²/2 = mgh; h = v²/(2g) = 49m²/s²/(2·9.8m/s²) = 2.5 m