Two descriptions about physical quantities are given below: quantity a: it has the same unit as force. quantity b: it measures the amount of matter in an object. what quantities are these most likely describing?

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n