Number of waves that pass a given point in one second
1 answer:
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Answer:
The impulse the stick applies to the puck is 7 kg-m/s and it is in opposite direction
Explanation:
Given that,
Mass of the hockey puck, m = 0.2 kg
Initial speed of the hockey, u = 12 m/s
Final speed of the hockey, f = -23 m/s (as it reverse its direction)
We need to find the impulse the stick applies to the puck. It is given by the change in momentum of the object. It is given by :
J = -7 kg-m/s
So, the impulse the stick applies to the puck is 7 kg-m/s and it is in opposite direction. Hence, this is the required solution.