How Does a Hockey Stick Affect Puck Velocity and Direction?

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The discussion focuses on calculating the average force exerted by a hockey stick on a puck during contact. The puck, initially moving at 12 m/s, changes direction and speed to 18 m/s after impact. The calculations yield a force magnitude of approximately 147.81 N and an angle of 12.02 degrees with respect to the x-direction. The methodology involves using momentum equations and trigonometric functions to determine the force components. Overall, the calculations appear to be accurate based on the provided data.
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Homework Statement



Note the picture...

An ice hockey puck with a mass at 0.20 kg has a velocity of 12 m/s before being struck by the hockey stick. After the impact the puck moves in the new direction shown with a velocity of18 m/s. If the stick is in contact with the puck for 40 ms, compute the magnitude of the average force F exerted by the stick on the puck during contact, and find the angle θ made by F with the x-direction.

Homework Equations





The Attempt at a Solution



Can someone let me know if this was done correctly

Fxt = mvx --> Fx(.04) = .2(-18cos20-12)...Fx = -144.57 N

Fyt = mvy--> Fy(.04) = .2(-18sin20-0)...Fy = -30.78 N

F = (Fx2 + Fy2)1/2 = 147.81 N

Q = arctan Fy/Fx) = 12.02 degrees
 

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Looks good.
 

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