((QUESTION 1)) The driver of a car sets the cruise control and ties the steering

Question

((QUESTION 1))

The driver of a car sets the cruise control and ties the steering wheel so that the car travels at a uniform speed of 15m/s in a circle with a diameter of 100m .

Part A

Through what angular distance does the car move in 3.70min ?

Express your answer using two significant figures.

Part B

What arc length does it travel in this time?

Express your answer using two significant figures.

((QUESTION 2)))

A wheel of radius 2.0m rotates at a uniform speed.

Part A

If a point on the rim of the wheel has a centripetal acceleration of 3.3m/s2 , what is the point

Explanation / Answer

Through what angular distance does the car move in 3.70min ?
(v/r)*t=0.3*3.7*60=66.6radians
in two significant figures=67 radians

What arc length does it travel in this time?

theta*radius=66.6*50=3330m

in two significant figures=3300m

A wheel of radius 2.0m rotates at a uniform speed.

Part A

If a point on the rim of the wheel has a centripetal acceleration of 3.3m/s2 , what is the point

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