a runaway truck with failed brakes is moving downgrade at 130 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of u = 15.The truck’s mass is 1.2 = 104 kg. (a) What minimum length L must the ramp have if the truck is to stop (momentarily) along it? (Assume the truck is a particle, and justify that assumption.) Does the minimum length L increase, decrease, or remain the same if (b) the truck’s mass is decreased and (c) its speed is decreased?
a runaway truck with failed brakes is moving downgrade at 130 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of u = 15.The truck’s mass is 1.2 = 104 kg. (a) What minimum length L must the ramp have if the truck is to stop (momentarily) along it? (Assume the truck is a particle, and justify that assumption.) Does the minimum length L increase, decrease, or remain the same if (b) the truck’s mass is decreased and (c) its speed is decreased?
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter9: Dynamics Of A System Of Particles
Section: Chapter Questions
Problem 9.62P
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Question
a runaway truck with failed brakes is moving
downgrade at 130 km/h just before the driver steers the truck
up a frictionless emergency escape ramp with an inclination of
u = 15.The truck’s mass is 1.2 = 104 kg. (a) What minimum length L must the ramp have if the truck is to stop (momentarily) along
it? (Assume the truck is a particle, and justify that assumption.)
Does the minimum length L increase, decrease, or remain the same
if (b) the truck’s mass is decreased and (c) its speed is decreased?
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