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You toss a tennis ball straight upward. At the moment it leaves your hand it is at a helght of 1.5 m above the ground, and it is moving at a speed of 6.2 m/s. (a) How much time does it take for the tennis ball to reach its maximum height?

User Olly Hicks
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Sure, we can find this using the principles of motion under gravity.

The motion of the tennis ball can be analyzed using the equation of motion: final_speed = initial_speed - gravity * time.

When the ball reaches maximum height, its final speed becomes zero. We can substitute this into the equation and solve for the time it takes to reach the maximum height.

So, according to the formula, we have

0 = initial_speed - gravity * time

This allows us to solve for time; rearranging the equation yields:

time = initial_speed / gravity

The given initial speed of the ball as it's released is 6.2 m/s and acceleration due to gravity is 9.8 m/s².

Substituting these values into the equation, we get

time = 6.2 m/s ÷ 9.8 m/s²

After doing the calculation, we find that it takes approximately 0.63 seconds for the tennis ball to reach its maximum height.