A 0.18 kg puck is initially stationary on an ice surface withnegligible friction. At time t = 0, a horizontal forcebegins to move the puck. The force is given by F→=(15.0-3.94t2)î,with F→ in newtons and t in seconds, and it acts until itsmagnitude is zero. (a) What is the magnitude ofthe impulse on the puck from the force between t = 0.560 sand t = 1.79 s? (b) What is the change inmomentum of the puck between t = 0 and the instant atwhich F = 0?
