A small block of mass M = 0.10 kg is released from rest at point 1 at a height H = 1.8 m above the bottom of a track, as shown in the diagram. It slides
down the track and around the inside of a loop of radius R = 0.6 m. The speed of the block is 2.5 m/s at point 3. Which of the following claims about the
situation is correct?
A) The gravitational potential energy of the block-Earth system at point 3 is less than the gravitational potential energy at point 2.
B) The kinetic energy of the block at point 3 is greater than the kinetic energy of the block at point 2.
The mechanical energy of the block-Earth system at point 3 is less than the mechanical energy of the block-Earth system at point 1.
D
The mechanical energy of the block-Earth system at point 2 is equal to the gravitational potential energy of the block-Earth system at point 1.
Answers: 1
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d
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What energy transformations occur each time the skateboarder rolls up the ramp?
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A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?
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A small block of mass M = 0.10 kg is released from rest at point 1 at a height H = 1.8 m above the b...
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