If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Apply: energy in systems

You might need: Calculator

Problem

A basketball player lifts a 0.600kg ball from the floor and shoots it at the hoop. Unfortunately, he misses, and the ball bounces off the backboard at a height of 3.30m with a speed of 8.00m/s. Assume that no energy was lost while the ball was in the air or when it hit the backboard. Use g=9.80m/s2.
How much mechanical energy did the player transfer to the ball?
Round your answer to the nearest tenth.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
J