A 10 kg object is lifted to 5 m and then allowed to fall. Kinetic energy just before hitting ground (g=10) is MCQ with Answer and Explanation

A 10 kg object is lifted to 5 m and then allowed to fall. Kinetic energy just before hitting ground (g=10) is
A. 500 J
B. 1000 J
C. 250 J
D. 0 J
Answer: Option A
Solution (By JKSSB Mock Tests)
PE at top = mgh = 10×10×5 = 500 J, converted to KE = 500 J (assuming no air resistance).

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