Recent content by ohhi

w =(88*.53)/60 *2pi = 4.88 rad/s a_tan= wr = (4.88 rad/s) * (.53m) = 2.59 rad/s^2 = (pi)(d)(2.59) m/s^2 = 8.61 m/s^2

I can't get it to work out.

I'm confused as to what numbers to use. Am I using the numbers from the first problem or the second?

Homework Statement The flywheel of a steam engine runs with a constant angular speed of 176 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 2.8 hours. What is the magnitude of the constant angular acceleration of the wheel? (Use units of...

Yeah, I actually realized and got that. I just came back to say I found the answer. Thanks.

Homework Statement A block with mass m = 24.6 kg slides down an inclined plane of slope angle 38.4 o with a constant velocity. It is then projected up the same plane with an initial speed 4.90 m/s. How far up the incline will the block move before coming to rest? Homework Equations...

Take the slope over the entire range of the graph.

So, Us= 3.0 = W?

Homework Statement A moving 2.7 kg block collides with a horizontal spring whose spring constant is 356 N/m. The block compresses the spring a maximum distance of 13.0 cm from its rest postion. The coefficient of kinetic friction between the block and the horizontal surface is 0.24. What is...