A ski jumper starts from rest 50.0 m above the ground on africtionless track and flies off the track at an angle of 45.0°above the horizontal and at a height of 10.0 m above the levelground. Neglect air resistance. (a) What is her speed whenshe leaves the track? (b) What is the maximum altitude sheattains after leaving the track? (c) Where does she land relativeto the end of the track?
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 ski jumper starts from rest 50.0 m above the ground on a
frictionless track and flies off the track at an angle of 45.0°
above the horizontal and at a height of 10.0 m above the level
ground. Neglect air resistance. (a) What is her speed when
she leaves the track? (b) What is the maximum altitude she
attains after leaving the track? (c) Where does she land relative
to the end of the track?
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