A 975-kg jeep comes to rest from a speed of 97.5 km/h in a distance of 105 m. Consider that the jeep is initially traveling in the positive direction. If the brakes are applied consistently and are the only thing making the jeep come to a stop, calculate the force (in newtons, in a component along the direction of motion of the jeep) that the brakes apply on the jeep. Suppose instead of braking that the jeep hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the jeep in this case. What is the ratio of the force on the jeep from the concrete to the braking force?
A 975-kg jeep comes to rest from a speed of 97.5 km/h in a distance of 105 m. Consider that the jeep is initially traveling in the positive direction. If the brakes are applied consistently and are the only thing making the jeep come to a stop, calculate the force (in newtons, in a component along the direction of motion of the jeep) that the brakes apply on the jeep. Suppose instead of braking that the jeep hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the jeep in this case. What is the ratio of the force on the jeep from the concrete to the braking force?
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter2: Newtonian Mechanics-single Particle
Section: Chapter Questions
Problem 2.51P: Let us make the (unrealistic) assumption that a boat of mass m gliding with initial velocity v0 in...
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A 975-kg jeep comes to rest from a speed of 97.5 km/h in a distance of 105 m. Consider that the jeep is initially traveling in the positive direction.
If the brakes are applied consistently and are the only thing making the jeep come to a stop, calculate the force (in newtons, in a component along the direction of motion of the jeep) that the brakes apply on the jeep.
Suppose instead of braking that the jeep hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the jeep in this case.
What is the ratio of the force on the jeep from the concrete to the braking force?
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