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An Object of Mass 4 Kg Is Thrown Vertically Upwards

Question 77

Multiple Choice

An object of mass 4 kg is thrown vertically upwards from ground level with an initial speed of 20 m/s. Ignore friction and use g = 10 m/s2. What is the kinetic energy of the object just before it hits the ground?


A) 800 J
B) 400 J
C) 0 J
D) 100 J
E) 200 J

Correct Answer:

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