Question1

Suppose about the demonstration by McWilliams with the rope and shoe.

a.) Draw a simple figure viewing the demonstration from above. Label the radius of the rope as "b". Write down an estimate of "b" in m.

b.) For the slower speed of rotation, estimate the centripetal acceleration of the shoe.

c.) For the faster speed of rotation, estimate the centripetal acceleration of the shoe.

d.) For the time between the slower and faster rotation speeds, estimate the magnitude of the tangential acceleration.

Question2

A race car starts from rest on a circular track of radius 279 m. The car's speed increases at the constant rate of 0.730 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the next -

(a.) speed of the race car

(b.) distance travelled

(c.) elapsed time