A car of mass 20000N climbs up a hill at a stready speed 8m/s². Gaining a height of 120m in 100 seconds. Calculate the work done and power of car.
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Answer:Answer:
(1). 24,00,000 Joules
(2). 24000 Watts
Explanation:
We have in the question,
Weight of the Car, W = 20,000 N
Speed of the car uphill , v = 8 m/s
Height achieved by the car, h = 120 m
Time taken by the car, t = 100 s
Now,
We know that the Work Done by the Car is given by,
Work Done = Potential Energy of the Car
Work Done = mgh
W = (20,000)(120)
W = 24,00,000 N
Therefore, the Work done by the car is 24,00,000 Joules.
(2).
Power of the engine can be given by,
So,
Power of the engine of the car is,
Therefore, the Power of the engine of the car is 24000 Watts.
Explanation:
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