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?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter5: More Applications Of Newton’s Laws
Section: Chapter Questions
Problem 40P
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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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