Originally Posted by

**princesasabella** I have recently started my first trig class and Im kind of lost on a couple of the homework problems. If a wheel has a central angle of 157.8 degrees and it rotates 150.5 times per second determine the radians/hour using angular velocity and miles/hour using linear velocity.

I dont even know what Im doing really. For the angular velocity problem I know in an hour it rotates 9030 times. I have to convert 157.8 degrees into radians and I did that and got 5.26pi/6. So Im not sure what to do next. I dont even know how to start the miles/hour problem. Can someone give me a hint please? Thanks.