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A scooter is moving with a velocity of $15 m / \sec$ . Which of the following is its kinetic energy if its mass along with the rider is $150 kg$ ?

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16785 J

165875 J

16758 J

16875 J

answer is D.

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Detailed Solution

The kinetic energy if its mass along the rider

150 kg

16875 J .

Kinetic energy is defined as the measure of the work that an object does due to its motion. Walking, jumping, throwing, and falling all are examples of kinetic energy.
Kinetic energy of an object is given by,

KE = \frac{1}{2} \times m \times v^{2} - - - 1

Given:
Mass

m = 150 kg

Velocity

v = 15 m / \sec

Substitute the given value in the equation (1)
Now,

K . E = \frac{1}{2} \times 150 \times 15 \times 15

K . E = 75 \times 15 \times 15

K . E = 16875 J

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