A. 4800J
B. 1200J
C. 480J 7°
D. 202J
E. 80J

Correct Answer:

Option C = 480J

Explanation

H= mCθ
= 200 x 0.4 x 6

= 480J

SEE ALSO  A train with an initial velocity of 20ms−¹ is subjected to a uniform deceleration of 2m−². The time required to bring the train to a complete halt is?

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