Roller coaster car, determine thermal energy and friction force

The roller coaster car starts its journey from a vertical height of 40m on the first hill and reaches a vertical height of only 25m on the second hill, where it slows to a momentary stop. It travelled a total distance of 400m. Determine the thermal energy produced and estimate the average friction force on the car whose mass is 1000kg
Physics numerical solved,
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#thermalenergy #physicsnumerical#easyedu#rollercoster

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