Britney throws an object into the air with an initial vertical velocity of 27 ft/s from a platform that is 10 ft above the ground. About how long will it take the object to hit the ground?
A. 1 s
b. 2 s
c. 3 s
d. 4 s
Stacey Warren - Expert brainly.com
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Are you on energy conservation or kinematics?
Both will solve the problem, but it's better to work with the one you're studying.
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this is math!
So you're on calculus?
Do you have the kinematics equation given to you?
I have h(t)=-4.9t^2 + VoT +Ho
Solve for t.
That is assuming the ball was thrown vertically \(upwards\)
and reject the negative root from the quadratic equation.
That's the same equation, but the number -4.9 should read -16 or -16.1, because you are working with feet, not metres.
okay, I understand now.
Take your time and post the answer to check if you wish.
Please give me the answer to 2 places of decimals, even though you have to round it to an integer later on.
Remember to reject the negative root.
I have to change it to a different question because I got a 70%
ok, anyway, the principle is the same.
I really just need the answer. I've tried really hard to get the equation right (I spent 10 minutes on just the one question), so could you possibly go easy on me?