Question

How high can a human throw a ball if he can throw it with initial velocity 90 mph.

a144.3 m
b 91.82 m
c 82.45 m
d99.82 m
e45.52 m​

Answer 1

c 82.45 m

Step-by-step explanation:

To solve this problem, we have to apply the right motion equation.

Given parameter;

Initial velocity = 90mph

So;

Using;

V² = U² - 2gh ; we can solve this problem

V is the final velocity = 0mph

U is the initial velocity

g is the acceleration due to gravity

h is the height

Now insert the parameters and solve;

We need to convert from mph to m/s

1 mph = 0.45m/s

90mph = 40.5m/s

0² = 40.5² - (2 x 9.8 x h)

0 = 1640.25 - 19.6h

-1640.25 = -19.6h

h = 83.7m