Question

A pool ball leaves a 0.80-meterhigh table with an initial horizontal velocity of 5.4(m)/(s). Calculate the time required for the pool ball to fall to the ground.

Answer 1

The time required for the pool ball to fall to the ground is 0.40 seconds.

Step-by-step explanation:

To calculate the time required for the pool ball to fall to the ground, we can use the equation:

h = (1/2)gt^2

where:

• h is the initial height, which is 0.80 m
• g is the acceleration due to gravity, which is approximately 9.8 m/s²
• t is the time

First, let's rearrange the equation:

t = sqrt(2h/g)

Substituting the given values:

t = sqrt(2*0.80/9.8) = 0.40 s

Therefore, the time required for the pool ball to fall to the ground is 0.40 seconds.