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Potentia l and Kinetic Energy . Chapter 13. Write down the formula you will use to calculate gravitational potential energy. Write down the formula you will use to calculate gravitational potential energy. gravitational PE = m g h . gravitational PE = m g h .
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Potential and KineticEnergy Chapter 13
Write down the formula you will use to calculate gravitational potential energy.
Write down the formula you will use to calculate gravitational potential energy. gravitational PE = m g h
gravitational PE = m g h A 60-kg person walks from the ground to the roof of a 75 meter tall building. How much gravitational PE does that person have at the top of the building?
gravitational PE = m g h gravitational PE = (60 kg)(9.8 m/s2) (75 m) gravitational PE = 44,100 Joules
gravitational PE = m g h Consider a ball thrown straight up in the air. Where or at what position will its gravitational PE at a maximum?
gravitational PE = m g h Consider a ball thrown straight up in the air. Where or at what position will its gravitational PE at a maximum?
gravitational PE = m g h A diver has 3,400 Joules of gravitational PE after climbing up onto a diving platform . The platform is 6.0 meters above the water. What is the diver’s mass?
gravitational PE = m g h = = m = m = 57.8 kg
Write down the formula you will use to calculate kinetic energy.
Write down the formula you will use to calculate kinetic energy. Kinetic Energy ( KE ) = KE =
KE = A 70 kgman is walking at a speed of 2.0 m/s. What is his kinetic energy (KE) ?
KE = KE = KE = KE = 140 Joules
KE = A 1400-kg car is moving at a speed of 25 m/s. How much KE does the car have?
KE = KE = KE = KE = 438,000 Joules
Where is PE the lowest? the highest? • Where is KE the lowest? the highest?
Where is PE the lowest? the highest? • Where is KE the lowest? the highest?
The End Potentialand KineticEnergy