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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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
Transcribed Image Text:**Problem Statement:**
A 3600-kg truck is driving upward along a road that has an incline of 4.0°. A fox runs out onto the road, and the driver of the truck locks her brakes and brings the truck to a stop in a distance of 38 m to avoid striking the fox. If the coefficient of static friction for the truck's tires on the road is 0.74, how much work is done by friction in stopping the truck?
**Options:**
- A) \(-1.0 \times 10^5\) J
- B) \(-1.3 \times 10^6\) J
- C) \(-9.9 \times 10^5\) J
- D) \(-9.1 \times 10^4\) J
- E) \(-4.7 \times 10^6\) J
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- 2. A 3.00 kg object is initially at rest on a horizontal surface. An applied force acts on the object in the +x-direction. Assume there is friction in the system as well. The Net Work done on the object is 50.0 J over a distance of 7.00 m. a) What is the object's Change in Kinetic Energy? Do Not Overthink this! b) What Net Force acted on this object?arrow_forwardtolerance is 3 sig figsarrow_forwardA3arrow_forward
- A system of two objects has AKtot = 7 J and AUint = -4 J. Part A How much work is done by interaction forces? Express your answer in joules. IVE ΑΣΦ Wint = Submit Part B How much work is done by external forces? Express your answer in joules. V—| ΑΣΦ Wext= = Request Answer Submit Request Answer ? ? J Jarrow_forwardA-C please!arrow_forwardA sledge loaded with bricks has a total mass of 17.6 kg and is pulled at constant speed by a rope inclined at 19.5° above the horizontal. The sledge moves a distance of 19.7 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? Your response differs from the correct answer by more than 100%. N (b) How much work is done by the rope on the sledge? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kJ (c).What.is.the.mechanical energy lost due to friction? Enter a number. differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kJ Additional Materialsarrow_forward
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