You have been hired as a physics professor by some aliens and taken far far away to their ‘planet’. Being curious, you wanted to find out which ‘planet’ you were on. With an alien stopwatch you determined the time for a 2.0 kg alien object released from a height of 2.5 m to hit the ground to be 1.75 s. 1. What is the acceleration due to gravity on the alien ‘planet’? 2. With what speed does the alien 2.0 kg object hit the ground?
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 have been hired as a physics professor by some aliens and taken far far away to their ‘planet’. Being curious, you wanted to find out which ‘planet’ you were on. With an alien stopwatch you determined the time for a 2.0 kg alien object released from a height of 2.5 m to hit the ground to be 1.75 s.
1. What is the acceleration due to gravity on the alien ‘planet’?
2. With what speed does the alien 2.0 kg object hit the ground?
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