In a washing machine, the clothes are held in cylinder called a drum. The drum has holes in it that allow water to enter the drum and also to drain out of the drum.

The drum of a particular washing machine spins at a rate of 1200 rpm (revolutions per minute).

(a) Determine the number of revolutions per second of the drum.

In a washing machine, the clothes are held in cylinder called a drum. The drum has holes in it that allow water to enter the drum and also to drain out of the drum.

The drum of a particular washing machine spins at a rate of 1200 rpm (revolutions per minute).

(b) Determine the angular speed of the drum.

A car travels around a $90°$ bend in $15 \mathrm{s}$. The radius of the bend is $50 \mathrm{m}$.

(a) Determine the angular speed of the car.

A car travels around a $90°$ bend in $15 \mathrm{s}$. The radius of the bend is $50 \mathrm{m}$.

Determine the speed of the car.

A spacecraft orbits the Earth in a circular path of radius $7000 \mathrm{km}$ at a speed of $7800 \mathrm{m}{\mathrm{s}}^{-1}$. Determine its angular velocity.

In each of the following cases, state what provides the resultant force causing centripetal acceleration:

(a) the Moon orbiting the Earth

In each of the following cases, state what provides the resultant force causing centripetal acceleration:

A car going round a bend on a flat, rough road

In each of the following cases, state what provides the resultant force causing centripetal acceleration:

(c) the weight on the end of a swinging pendulum.