Respuesta :

Answer:

The ball will go to maximum height of 56.25 meters.

Step-by-step explanation:

It is given that, a ball is thrown vertically upward from the ground. Initial velocity of the ball, v = 60 ft/sec

Initial height is 0 as the ball is thrown from ground. The equation of projectile is given by :

[tex]h(t)=-16t^2+vt+h[/tex]

h = 0

[tex]h(t)=-16t^2+60t[/tex]..............(1)

We need to find the maximum height reached by the ball. For maximum height,

[tex]\dfrac{dh(t)}{dt}=0[/tex]

[tex]\dfrac{d(-16t^2+60t)}{dt}=0[/tex]

t = 1.875 seconds

Put the values of t in equation (1). So,

[tex]h(t)=-16(1.875)^2+60(1.875)[/tex]

h(t) = 56.25 meters

So, the ball will go to maximum height of 56.25 meters. Hence, this is teh required solution.