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A 2 kg trolley moves at 5 m/s. What is its momentum?
A2.5 kg m/s
B10 kg m/s
C7 kg m/s
D25 kg m/s
Answer & Solution
Correct answer: B. 10 kg m/s
p = mv = 2 kg x 5 m/s = 10 kg m/s.
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