A cheetah can accelerate from rest to 25.0 m>s in 6.22 s.Assuming constant acceleration, (a) how far has the cheetah run inthis time? (b) After sprinting for just 3.11 s, is the cheetah’s speed12.5 m>s, greater than 12.5 m>s, or less than 12.5 m>s? Explain.(c) What is the cheetah’s average speed for the first 3.11 s of itssprint? For the second 3.11 s of its sprint? (d) Calculate the distancecovered by the cheetah in the first 3.11 s and the second 3.11 s.
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 cheetah can accelerate from rest to 25.0 m>s in 6.22 s.
Assuming constant acceleration, (a) how far has the cheetah run in
this time? (b) After sprinting for just 3.11 s, is the cheetah’s speed
12.5 m>s, greater than 12.5 m>s, or less than 12.5 m>s? Explain.
(c) What is the cheetah’s average speed for the first 3.11 s of its
sprint? For the second 3.11 s of its sprint? (d) Calculate the distance
covered by the cheetah in the first 3.11 s and the second 3.11 s.
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