A hockey player sends a hockey puck flying across the ice. Newton's 1st law says that an object in motion must remain in motion, but the hockey puck will eventually come to a stop. What is the best explanation for this contradiction?

Respuesta :

according to newton's first law, an object maintains its state of rest or motion unless acted upon by an external force. So a force is required to stop an object at rest and a force is also required to move an object at rest.

when the hockey player send a hockey puck flying across the ice , frictional force from the ice surface acts on the puck in opposite direction of the motion of puck to slow it down and stops it finally.

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