A 15 kg ball is thrown straight upward with a speed of 20 m/s. What is the maximum height the ball reaches?

As energy is conserved, the potential energy at the ball's highest point is equal to the kinetic energy when it is thrown.

A. 14.0 m
B. 19.8 m
C. 20.4 m
D. 40.8 m

The maximum height reached by the ball is 20.4 m.

Explanation:

We have,

Mass of a ball is 15 kg

It is thrown straight upward with a speed of 20 m/s.

It is required to find the maximum height reached by the ball. Let the maximum height is h. As energy is conserved, the potential energy at the ball's highest point is equal to the kinetic energy when it is thrown. So,

So, the maximum height reached by the ball is 20.4 m.

d eras and periods

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.