Question

if an object is projected upward with an initial velocity of 80 ft per second, what is t at maximum height

Answer 1

The time at maximum height is 2.49 s.

Step-by-step explanation:

The time (t) at the maximum height can be found using the following equation:

`v_(f) = v_(0) - gt`

Where:

`v_(f)`: is the final velocity = 0 (at the maximum height)

`v_(0)`: is the initial velocity = 80 ft/s

g: is the gravity = 9.81 m/s²

Hence, the time is:

`t = (v_(0))/(g) = (80 (ft)/(s)*(1 m)/(3.281 ft))/(9.81 m/s^(2)) = 2.49 s`

Therefore, the time at maximum height is 2.49 s.

I hope it helps you!