(a) When a moving car is slowed to a stop with its brakes, what is the direction
ID: 1345502 • Letter: #
Question
(a) When a moving car is slowed to a stop with its brakes, what is the direction of its acceleration vector? Describe the path of a ball dropped by a passenger during the time the car is slowing down. (b) A box rests on the (frictionless) bed of a truck. The truck driver starts the truck and accelerates forward. The box immediately starts to slide toward the rear of the truck bed. Discuss the motion of the box in terms of Newton’s laws, as seen (a) by Andrea standing on the ground beside the truck, and (b) by Jim who is riding on the truck.
Explanation / Answer
As per guidelines i am answering first question
A simple rule of thumb for determining the direction of the acceleration is that an object which is slowing down will have an acceleration directed in the direction opposite of its motion.
Applyrule of thumb would lead us to conclude that When a moving car is slowed to a stop with its brakes the direction of its accleration is opposite to the motion of the car.
it follows parbolic path
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