Suppose you push a hockey puck of mass mm across frictionless ice for a time ΔtΔt, starting from rest, giving the puck speed vv after traveling distance dd. If you repeat the experiment with a puck of mass 2mm, 1. How long will you have to push for the puck to reach the samespeed v?t/ (delta t) = ? 2.How long will you have to push for the puck to travel the samedistance d?t/ (delta t) = ?

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.