Suppose an unpowered go-cart (with a child rider) traveling at an initial speed of 5 m/s. Coast on a level road for about 50 m before coming to rest. If the cart and rider have a mass of 40 kg, about what force would you have to apply to keep the cart moving at a constant speed? Assume that the friction forces acting on the cart are approximately independent of its speed. (Hint: Use the “momentum requirement” to compute the magnitude of the total friction per drag force acting on the cart, then link this force to the force you must apply.)
Suppose an unpowered go-cart (with a child rider) traveling at an initial speed of 5 m/s. Coast on a level road for about 50 m before coming to rest. If the cart and rider have a mass of 40 kg, about what force would you have to apply to keep the cart moving at a constant speed? Assume that the friction forces acting on the cart are approximately independent of its speed. (Hint: Use the “momentum requirement” to compute the magnitude of the total friction per drag force acting on the cart, then link this force to the force you must apply.)
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section: Chapter Questions
Problem 8STP
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Suppose an unpowered go-cart (with a child rider) traveling at an initial speed of 5 m/s. Coast on a level road for about 50 m before coming to rest. If the cart and rider have a mass of 40 kg, about what force would you have to apply to keep the cart moving at a constant speed? Assume that the friction forces acting on the cart are approximately independent of its speed. (Hint: Use the “momentum requirement” to compute the magnitude of the total friction per drag force acting on the cart, then link this force to the force you must apply.)
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