- #1

jesuslovesu

- 198

- 0

During a 5 s interval the ang. velocity increases to 40 rad/s. (const angular acceleration) How many radians does the wheel turn in 5 s?

Having a bit of trouble, not quite sure why...

so I start out with

w = w0 + at

40 = 20 + a*5

a = 4

w^2 = w0^2 + 2*4*theta

theta = 150 radians

I thought that was the correct answer, however, that's not one of the choices. Anyone see what I'm doing wrong?