A downhill skier crosses the finishing line at a speed of 30 1 m/s and immediately starts to decelerate at 10 m/s2 . There is a barrier 50 meters beyond the finishing line. (a) Find an expression for the skier s speed when she is V meters beyond the finishing line. (b) How fast is she travelling when she is 40 meters beyond the finishing line? (c) How far short of the barrier does she come to a stop?
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.
A downhill skier crosses the finishing line at a speed of 30 1 m/s and immediately starts to decelerate at 10 m/s2 . There is a barrier 50 meters beyond the finishing line.
(a) Find an expression for the skier s speed when she is V meters beyond the finishing line.
(b) How fast is she travelling when she is 40 meters beyond the finishing line?
(c) How far short of the barrier does she come to a stop?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
