A Vertical Spring Is Compressed and When Released Applies a Force

A vertical spring is compressed and when released applies a force during a 0.25 s time interval to a 17 g frog,which is flung upward due to the applied force from the spring.If the frog attains a velocity of 11 m/s after being released from the spring,what average force was applied by the spring?

A) 0.21 N
B) 0.91 N
C) 0.75 N
D) 0.17 N
E) 0.58 N

Correct Answer:

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