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A 1500-kg truck and a 1200-kg car are parked with their rear bumpers nearly touching each other in a level parking lot. Both vehicles have their brakes off so that they are free to roll. A man sitting on the rear bumper of the truck exerts a constant horizontal force on the rear bumper of the car with his feet, and the car accelerates at 1.2 m/s2. Ignore any friction between the tires and the parking lot surface. The direction of the unit vector ı^ is the direction of motion of the car. Part A What is the acceleration of the center of mass of the car-truck system?

A 1500-kg truck and a 1200-kg car are parked with their rear bumpers nearly touching each other in a level parking lot. Both vehicles have their brakes off so that they are free to roll. A man sitting on the rear bumper of the truck exerts a constant horizontal force on the rear bumper of the car with his feet, and the car accelerates at 1.2 m/s2. Ignore any friction between the tires and the parking lot surface. The direction of the unit vector ı^ is the direction of motion of the car. Part A What is the acceleration of the center of mass of the car-truck system?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A 1500-kg truck and a 1200-kg car are parked with their rear bumpers nearly touching each other in a level parking lot. Both vehicles have their brakes off so that they are free to roll. A man sitting on the rear bumper of the truck exerts a constant horizontal force on the rear bumper of the car with his feet, and the car accelerates at 1.2 m/s2. Ignore any friction between the tires and the parking lot surface. The direction of the unit vector ı^ is the direction of motion of the car.

Part A

What is the acceleration of the center of mass of the car-truck system?
 

Part B

What is the vector sum of forces exerted on a car?
Express your answer with the appropriate units.
 

Part C

What is the vector sum of forces exerted on a truck?
Express your answer with the appropriate units.
 
Part D
 
What is the acceleration of the truck?
Express your answer with the appropriate units.
 
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