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Question

A truck has a mass of 8000 kgs, a car has a mass of 1000 kgs and a bike has a mass of 100 kgs. Both the truck and car are moving on a level road at 45ms1. The bike, however, is going on the same level road at 55ms1. The kinetic energy will be more for the _______.

A
truck
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B
car
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C
bike
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D
truck and bike only
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Solution

The correct option is A truck
Kinetic Energy depends on mass and velocity. If two bodies move with the same velocity then the one with higher mass has more kinetic energy. In this case, the kinetic energy of the car and bike is less than the that of the truck.

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