Hockey player 1 is travelling at a velocity of 9.0 m/s [N] and hockey player 2 is travelling at a velocity of 12.0 m/s [S]  when they collide head-on. After colliding, the hockey players hang on to each other and slide along the ice with a velocity of 4.0 m/s [S]. If hockey player 1 weighs 70 kg, calculate how much hockey player 2 weighs.

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: