Atorque applied to a flywheel causes it to accelerate uniformly from a speed of 161 rev/min to a speed of 853 rev/min in 5.0 seconds. determine the number of revolutions n through which the wheel turns during this interval. (suggestion: use revolutions and minutes for units in your calculations.)

First of all, let's convert the time interval into minutes. Since

we find


Then we can find the angular acceleration of the flywheel:


At this point, we can use the law of motion of an uniformly accelerated rotational motion. The angular displacement after a time is given by


So, the flywheel covers 42.1 revolutions.

The car would move to the right with 150 n of force. the 150 n of force from friction and air resistance slows the car from moving to the right with 300 n of force.