A few days ago
Erin L

Physics/Pre Calc help!?

You are standing on a building that is 48 ft tall. You throw a ball upward at a velocity of 32 feet per second.

a. Write down a modeling fnc to describe the height h(t) of the ball. You may assume that the height of your hand when you release the ball is exactly 48 ft. Ignore the effects of air resistance.

—-For my answer for this i got: h(t)= -16t^2 + 32t +48. Our teacher gave us that.

b. Lets say that you threw the ball straight up. When will the ball land on the building. Express your answer in seconds passed since you threw the ball.

——For this i got 3 seconds, i plugged it in the the fnc above and got 0 for h(3).

c. Assume that the ball barely misses the building on the way down. After how many seconds after the ball is thrown will it hit the ground?

Thank you for anyone who can help!

Top 1 Answers
A few days ago
Anonymous

Favorite Answer

the problem can be framed using equation given below

V=U+ at where V is the final velocity(0) , U is the initial velocity(32 feet/ sec) and accleration here is due to gravity and its in negative direction(-9.8 m/s2) and t is for time i hope now you can calculate

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