ski jumper starts from rest 54.1 m above the ground on a frictionless track and flies off the track at an angle of 43.8 ◦ above the horizontal and at a height of 10.8 m above the level ground. Neglect air resistance. The acceleration of gravity is 9.8 m/s 2 .
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 54.1 m above
the ground on a frictionless track and flies
off the track at an angle of 43.8
◦
above the
horizontal and at a height of 10.8 m above the
level ground. Neglect air resistance.
The acceleration of gravity is 9.8 m/s
2
.
What is his speed when he leaves the track?
Answer in units of m/s.
b) What is the maximum altitude he attains
after leaving the track?
Answer in units of m.
c) Where does he land relative to the end of the
track?
Answer in units of m.
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