12. A car is on the 5th floor of a parking lot. the mass of the car is 900kg and the height of each floor of the parking lot 2.5m
a) when it is parked in the parking space.
at a given moment, the car begins to descend towards the exit, with a constant speed of 20 km / h.
b) Calculate its mechanical energy passes through the 3rd floor of the car park
c) Calculate its mechanical energy at the moment it reaches the output
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12. A car is on the 5th floor of a parking lot. the mass of the car is 900kg and the height of each...
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