A large bag of feathers and a steel block balance each other on some scales. What does this show about the masses and the weights of the bag of leathers and the stoel
block?

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?