A 70.0 kg sled is pulled from rest by a snowmobile and accelerates at 2.2 m/s² [forward] for 7.5 s. The force of friction acting on the sled is 125.0 N [backwards]. The total mass of the snowmobile and the driver is 455.0 kg and the force of friction acting on the snowmobile is 549.0 N [backwards]. Determine the work done by the snowmobile engine. Input your answer with 1 decimal place

A 70.0 kg sled is pulled from rest by a snowmobile and accelerates at 2.2 m/s² [forward] for 7.5 s. The force of friction acting on the sled is 125.0 N [backwards]. The total mass of the snowmobile and the driver is 455.0 kg and the force of friction acting on the snowmobile is 549.0 N [backwards]. Determine the work done by the snowmobile engine. Input your answer with 1 decimal place

Name: s²A 70.0 kg sled is pulled from rest by a snowmobile and accelerates
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Description: s²A 70.0 kg sled is pulled from rest by a snowmobile and accelerates at 2.2 m/[forward] for 7.5 s. The force of friction acting on the sled is 125.0 N [backwards].The total mass of the snowmobile and the driver is 455.0 kg and the force of frictiona

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 9P: A particle is subject to a force Fx that varies with position as shown in Figure P7.9. Find the work...

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a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
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