A shopper in a supermarket pushes a cart with a force of 35.0 N. directed at an angle 25.0° below the horizontal. The force is just sufficient to balance various friction forces, so the cart moves at a constant speed. a. Find the work done by the shopper on the cart as she moves down a 50.0-m-long aisle. b. The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the friction force doesn't change, would the shopper's applied force be larger, smaller or the same? c. What about the work done on the cart by the shopper?

A shopper in a supermarket pushes a cart with a force of 35.0 N. directed at an angle 25.0° below the horizontal. The force is just sufficient to balance various friction forces, so the cart moves at a constant speed. a. Find the work done by the shopper on the cart as she moves down a 50.0-m-long aisle. b. The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the friction force doesn't change, would the shopper's applied force be larger, smaller or the same? c. What about the work done on the cart by the shopper?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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