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A motorbike, together with its rider, weighs 150 kg. How much work is needed to set its movement at 15 m/s?

A) 112,500 J
B) 15,000 J
C) 10,000 J
D) 150,000 J

Answer :

Final answer:

To calculate the work needed to set the movement of the motorbike and its rider at 15 m/s, we can use the formula Work = Change in Kinetic Energy. Using the given values, the work is calculated to be 112,500 J.

Explanation:

To calculate the work needed to set the movement of the motorbike and its rider at 15 m/s, we need to use the formula:

Work = Change in Kinetic Energy

Since the motorbike and rider have a combined mass of 150 kg and are initially at rest, the initial kinetic energy is zero. The final kinetic energy is given by:

Final Kinetic Energy = 0.5 * (mass) * (final velocity)^2

Substituting the given values, we have:

Final Kinetic Energy = 0.5 * 150 kg * (15 m/s)^2 = 112,500 J

Therefore, the work needed to set the movement of the motorbike and rider at 15 m/s is 112,500 Joules.

Learn more about Work and Energy here:

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