please help me to solve this problem:

calculate the angular velocity of a point for the given number of revolutions and time. express the answer on in radians per minute.

1.θ=1/2;t=2min.
2.θ=1/4;t=5min.
3.θ=2/3;t=10min.
4.θ=3/5;t=12min.
5.θ=5/6;t=15min.
6.θ=1/3;t=3min.

1 answer

1. Va=(1/2)rev/2min * 6.28rad/rev= 1.57
rad/min.

2 through 6. Same procedure as #1.