Question

Ariel dropped a golf ball from her second story window the ball starts from rest and hits the sidewalk 1.5 seconds later with a velocity of 14.7 m/s find the average acceleration of the golf ball

Answer 1

The average acceleration of the golf ball as it falls to the sidewalk is 9.8 m/s², which is the acceleration due to gravity.

Step-by-step explanation:

To find the average acceleration of the golf ball, we can use the following kinematic equation:

vf = vi + at

Where:

• vf = final velocity (14.7 m/s, given)
• vi = initial velocity (0 m/s, starts from rest)
• a = average acceleration (what we're trying to find)
• t = time (1.5 seconds, given)

Plugging in the given values:

14.7 m/s = 0 m/s + a(1.5 s)
Solving for a:

14.7 m/s = a(1.5 s)
a = 14.7 m/s / 1.5 s
a = 9.8 m/s2

So, the average acceleration of the golf ball as it falls to the sidewalk is 9.8 m/s2, which is the acceleration due to gravity.

Answer 2

Average acceleration:
`9.8 (m)/(s^2)`

Step-by-step explanation:

Use the formula for average acceleration:
`a=(v_f-v_1)/(t) \\a=(14.7-0)/(1.5)\\a=9.8 (m)/(s^2)`