PHSX 114 - Homework #18

PHSX 114 - Homework #18 - [Num[Units b If the car continues...

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PHSX 114 – HOMEWORK # 18 Question 1: (2 points) A wheel 34 cm in diameter accelerates uniformly from 2.0E2 rpm to 3.4E2 rpm in 7.0 s . How far will a point on the edge of the wheel have traveled in this time? Number Units Question 2: (2 points) The tires of a car make 65 revolutions as the car reduces its speed uniformly from 75 km/h to 25 km/h . The tires have a diameter of 0.50 m . a. What was the angular acceleration of the tires? Enter scientific notation as 1.23E4.

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Unformatted text preview: [Num] [Units] b. If the car continues to decelerate at this rate, how much more time is required for it to stop? [Num] [Units] 1 Question 3: (1 point) A person exerts a force of 45 N on the end of a door 78 cm wide. a. What is the magnitude of the torque if the force is exerted perpendicular to the door? [Num] [Units] b. What is the magnitude of the torque if the force is exerted at a 45° angle to the face of the door? [Num] [Units] 2...
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This note was uploaded on 04/09/2008 for the course PHSX 114 taught by Professor Davis during the Spring '08 term at Kansas.

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PHSX 114 - Homework #18 - [Num[Units b If the car continues...

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