The figure depicts a hockey puck sliding with a constant speed v0 in a straight line from point "a" to point "b" on a frictionless horizontal surface. Forces exerted by the air are negligible. You are looking down on the puck. When the puck reaches point "b," it receives a swift horizontal kick in the direction of the heavy print arrow. Had the puck been at rest at point "b," then the kick would have set the puck in horizontal motion with a speed vk in the direction of the kick. Which of the paths below would the puck most closely follow after receiving the kick?
The figure depicts a hockey puck sliding with a constant speed v0 in a straight line from point "a" to point "b" on a frictionless horizontal surface. Forces exerted by the air are negligible. You are looking down on the puck. When the puck reaches point "b," it receives a swift horizontal kick in the direction of the heavy print arrow. Had the puck been at rest at point "b," then the kick would have set the puck in horizontal motion with a speed vk in the direction of the kick. Which of the paths below would the puck most closely follow after receiving the kick?
We are given a puck which is travelling from one point to another. We are also given a kick to the puck. We need to decide the motion of the puck. We know that when there is no external force applied, there is no change in state of motion.
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