A 5-kg cart moving to the right witha speed of 6 m/s collideswitha concrete wall and rebounds with a speed of 2 m/s. Is thechange in momentum of the cart (a) 0,
(b) 40 kg * m/s,
(c) -40kg*m/s,
(d) -30 kg*m/s,
(e) -10 kg*m/s

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?