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student1010
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Homework Statement
A rock is tossed straight up with a velocity of When it returns, it falls into a hole deep.
What is the rock's velocity as it hits the bottom of the hole?
Kinematics in physics is the branch of mechanics that studies the motion of objects without considering the forces that cause the motion. It involves analyzing the position, velocity, and acceleration of an object as it moves through space and time.
The basic equations of kinematics include the equations for position, velocity, and acceleration, which are:
Speed is a scalar quantity that measures the rate at which an object covers distance. Velocity is a vector quantity that measures the rate of change of an object's position in a particular direction. In other words, velocity includes both the speed and direction of an object's motion.
The average velocity of an object is calculated by dividing the change in position (x) by the change in time (t):
Average velocity = (x2 - x1) / (t2 - t1)
Acceleration is the rate of change of an object's velocity. It can either speed up or slow down an object's motion, depending on whether the acceleration is in the same direction or opposite direction as the velocity. When an object experiences constant acceleration, its velocity changes by the same amount in each time interval.