Short answerEasy1.5 marks
5(a)
A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground.
What is the kinetic energy possessed by the body just before hitting the ground? Take g = 10 m s-2.
Topic: Work, energy and power
Previous-year question practice database
Answer
Exam answer
500 J.
Explanation
Just before impact PE≈0, so all 500 J is kinetic.
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