Laws Of Motion Question 129
Question: A 15 kg block is initially moving along a smooth horizontal surface with a speed of to the left. It is acted by a force , which varies in the manner shown. Determine the velocity of the block at seconds. Given that,
Options:
A) 12.5 m/s
B) 8.5 m/s
C) 20 m/s
D) 9.5 m/s
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Answer:
Correct Answer: A
Solution:
[a] Change in liner momentum