A few days ago
Qwerty

Physics Homework Help?

Homework Help

the ceiling of a classroom is 3.75 m above the floor. A student tosses a ball upward releasing it .5m above the floor. What is the maximum initial speed the can be given to the ball so that it does not hit the ceiling.

Can you please explain or show work

Top 1 Answers
A few days ago
Anonymous

Favorite Answer

Alright, we know the following things:

Vf = 0 m/s

// When the ball is at the peak of its parabola, infinitely close to the ceiling.

A = -9.8 m/s/s

// Acceleration of gravity in frictionless environment.

D = 3.25 m.

This is enough to solve Newton’s squared velocity equation of

V^2 =Vi^2 + 2AD

0^2 = Vi^2 + 2(-9.8)(3.25)

Vi^2 = 2(9.8)(3.25)

Vi = rad[2(9.8)(3.25)]

Vi = ~7.981 m/s.

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