1. Suppose a teenager puts her bicycle on its back and starts the rear wheel spinning from rest to a final angular velocity of 250 rpm in 5.00 s. Radius of tire is 50 cm. What angle did the tire move through in those 5 secs

Explanation:

The angle in rotational motion is given by:

Recall that the angular speed is larger than regular frequency (in rpm) by a factor of , so:

The wheel spins from rest, that means that its initial angular speed is zero(). Finally, we have to convert the given time to minutes and replace in the first equation:

the force on the thing and the distance the force moves the thing

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.