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Question 4. Calculate the kinetic energy of a Year 11 pupil (mass 55Kg) Swinging on the back of a chair and falling off it with a velocity of 6 m/s.
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Question 4. Calculate the kinetic energy of a Year 11 pupil (mass 55Kg)

Swinging on the back of a chair and falling off it with a velocity of 6 m/s.

User Hyla
by
4.9k points

1 Answer

1 vote

Answer:

990 J

Step-by-step explanation:

Kinetic energy is:

KE = ½ mv²

Given m = 55 kg and v = 6 m/s:

KE = ½ (55 kg) (6 m/s)²

KE = 990 J

User Manny Fitzgerald
by
5.3k points
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