Download Conservation of Energy Problems First Set

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Science 10 Physics
Conservation of Energy
Name: ____________________
Conservation of Energy – Question Set #1
1. If Wile E. Coyote drops this 50 kg boulder from a height of 200m, what will the kinetic energy be
just before it hits the ground?
2. Tom Brady is about to kick a 2 kg football through the goal post. When it was on the ground,
Brady kicked the ball hard enough to give it an initial kinetic energy of 500 J. What maximum
height did the ball reach (note: at maximum height, the velocity of the ball is zero!)
3. A balcony bbq (mass = 20kg) was poorly attached to the railing, and it fell from a 30m apartment
building. What was the kinetic energy the instant before it hit the ground?
Science 10 Physics
Conservation of Energy
Name: ____________________
4. The Kingda Ka rollercoaster at Six Flags is the world’s tallest roller coaster. Its first hill is 140m!
The average mass of a roller coaster train is 4500 kg. What will the kinetic energy of the train be
at the bottom of the first hill?
BONUS!!! Find the speed of the train at the bottom of the first hill 