In the figure, a runaway truck with failed brakes is moving downgrade at 109 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of 0 = 17°. The truck's mass is 1.3 x 10ª 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 Lincrease, decrease, or remain the same if (b) the truck's mass is decreased and (c) its speed is decreased? (a) Number i 1.6 Units m (b) remain the same (c) decrease

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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In the figure, a runaway truck with failed brakes is moving downgrade at 109 km/h just before the driver steers the truck up a
frictionless emergency escape ramp with an inclination of 0 = 17°. The truck's mass is 1.3 × 10ª 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 Lincrease, decrease, or remain the same if (b) the truck's mass is decreased and (c) its speed is decreased?
(a) Number
i
1.6
Units
m
(b)
remain the same
(c)
decrease
Transcribed Image Text:In the figure, a runaway truck with failed brakes is moving downgrade at 109 km/h just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of 0 = 17°. The truck's mass is 1.3 × 10ª 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 Lincrease, decrease, or remain the same if (b) the truck's mass is decreased and (c) its speed is decreased? (a) Number i 1.6 Units m (b) remain the same (c) decrease
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