An assistant fills his cart with items to be stacked on the racks of a supermarket. The cart and the items have a combined mass of 65 kg. He pushes the cart at a constant speed, with a constant force of 80N directed at an angle of 24° below the horizontal. a. Find the work done by the assistant in pushing the cart down a 12-m-long aisle. b. How much frictional force acts on the wheels of the cart? c. Solve for the value of the coefficient of kinetic friction between the wheels of the cart and the floor.
An assistant fills his cart with items to be stacked on the racks of a supermarket. The cart and the items have a combined mass of 65 kg. He pushes the cart at a constant speed, with a constant force of 80N directed at an angle of 24° below the horizontal. a. Find the work done by the assistant in pushing the cart down a 12-m-long aisle. b. How much frictional force acts on the wheels of the cart? c. Solve for the value of the coefficient of kinetic friction between the wheels of the cart and the floor.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 29P: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...
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