You’re driving down the highway at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s. Once you step on the brakes, your car undergoes a constant acceleration of −10 m/s2 . (a) How much distance is between your car and the deer when you come to a stop? (b) What is the maximum speed you could have started with and still not hit the deer?
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’re driving down the highway at 20 m/s when a deer steps onto the road 35 m in
front of you. Your reaction time before stepping on the brakes is 0.50 s. Once you step
on the brakes, your car undergoes a constant acceleration of −10 m/s2
.
(a) How much distance is between your car and the deer when you come to a stop?
(b) What is the maximum speed you could have started with and still not hit the
deer?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
