Physics: Need help with physics HW problem, help would be appreciated?
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Answer:
It's D. The momentum of the entire system must always be conserved. Thus, if the golf ball gains forward momentum, the club must lose the same amount of forward momentum by 'gaining' equal momentum in the opposite direction to ensure the total stays the same. Edit: Regarding Ryu, while the total momentum stays moving in the forward direction, the CHANGE in momentum of the club is in the OPPOSITE direction. If it also gained forward momentum, the entire system would increase in forward momentum. In other words, Ryu is not correct.
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Other answers
It's D. The momentum of the entire system must always be conserved. Thus, if the golf ball gains forward momentum, the club must lose the same amount of forward momentum by 'gaining' equal momentum in the opposite direction to ensure the total stays the same. Edit: Regarding Ryu, while the total momentum stays moving in the forward direction, the CHANGE in momentum of the club is in the OPPOSITE direction. If it also gained forward momentum, the entire system would increase in forward momentum. In other words, Ryu is not correct.
Alex
A. Momentum is always conserved. So the magnitude is always equal. In this case, when a club hits a golf ball, both the club and ball continue in the forward direction, so its the same direction.
Ryu
A. Momentum is always conserved. So the magnitude is always equal. In this case, when a club hits a golf ball, both the club and ball continue in the forward direction, so its the same direction.
Ryu
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