A 2 kg body's speed changes from 3 m/s to 8 m/s along a line. Impulse?
A10 N s
B22 N s
C5 N s
D11 N s
Answer & Solution
Correct answer: A. 10 N s
Impulse equals change in momentum: 2 x (8 - 3) = 10 N s.
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