A hockey puck has a mass of 0.121 kg and is at rest. a hockey player makes a shot, exerting a constant force of 32.5 n on the puck for 0.16 s. with what speed does it head toward the goal? m/s

Question

Physics

Ireland Zavala

1 February, 02:13

A hockey puck has a mass of 0.121 kg and is at rest. a hockey player makes a shot, exerting a constant force of 32.5 n on the puck for 0.16 s. with what speed does it head toward the goal? m/s

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Answers (1)

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Graham Kaiser · Answer 1

U = initial velocity = 0 m/s

v = final velocity

t=0.16 s

F = 32.5 N

From Newton's 2nd law,

F = ma

32.5=0.121a

∴a=268.59 m/s²

Now, use the kinematic equation to find v,

∴v=u+at

v=0+268.59 (0.16) = 42.97 m/s

Therefore, with this velocity puck will head towards the goal