You are traveling on an interstate highway at the posted speed limit of 70 mph when you see that the traffic in front of you has stopped due to an accident up ahead. You step on your brakes to slow down as quickly as possible. Assume that you to slow down to 30 mph in about 5 seconds. a. What is the magnitude of the average acceleration of the car while it is slowing down? Express your answer in feet per second squared. b. With this same average acceleration, how much longer would it take you to stop? c. What total distance would you travel from when you first apply the brakes until the car stops? Express your answer in feet
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
You are traveling on an interstate highway at the posted speed limit of 70 mph when you see that the traffic in front of you has stopped due to an accident up ahead. You step on your brakes to slow down as quickly as possible. Assume that you to slow down to 30 mph in about 5 seconds.
a. What is the magnitude of the average acceleration of the car while it is slowing down?
b. With this same average acceleration, how much longer would it take you to stop?
c. What total distance would you travel from when you first apply the brakes until the car stops?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
