Concept explainers
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
a. When does the ball strike the ground? That is, how long is the ball in the air?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
b. What is the average velocity of the ball from ?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
c. What is the instantaneous velocity of the ball at time ?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
d. What is the instantaneous velocity of the ball at ?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
e. When is the instantaneous velocity of the ball equal to zero?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
f. How high is the ball when its instantaneous velocity equals zero?
To find: Instantaneous Velocity of a Ball In physics it is shown that the height of a ball thrown straight up with an initial velocity of from ground level is,
where is the elapsed time that the ball is in the air.
g. What is the instantaneous velocity of the ball when it strikes the ground?

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