Question

If an object moves along a circle of radius r units, then its linear velocity, v, is given by v= r θ/t where θ/t represents the angular velocity in radians per unit of time. Find the angular velocity for each: a) a pulley of radius 8 cm turns at 5 revolutions per second.
b) a bike tire of diameter 26 inches turns at 3 revolutions per second

Answer 1

5 rev = 5*2pi = 10pi radians thats the change in angle a second

Answer 2

speed=r*angularspeed

Answer 3

so the angular velocity is 10π? that's what I got. and for b) i got 6π

Answer 4

*10 pi for a) and 6pi for B)

Answer 5

yeah

Answer 6

thanks

Answer 7

np ctya