A ball rolls horizontally off a table of height 1.4 m with a speed of 4 m/s. How long does it take the ball to reach the ground?

Question

anonymous · Answer

4 m/s falling or rolling? if the velocity is toward the Earth's surface it should take .35 seconds to land. If this isnt what your looking for, tell me aditional information.

isaiah.feynman · Answer

Projectile motion sir.

anonymous · Answer

Then youll have to use gravitational acceleration, 9.78 m/s2. to solve this I will need the mass of the object.

isaiah.feynman · Answer

Nope, mass is not needed.

isaiah.feynman · Answer

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anonymous · Answer

I'm sorry my english is poor, could you type that out?

isaiah.feynman · Answer

Theta is the angle between the velocity vector and the horizontal. In this case 0, sin 0 = 0

isaiah.feynman · Answer

Sorry what I drew is an equation.

anonymous · Answer

hai hai, i know. i'm not good at reading english yet, so i asked to type as a result

isaiah.feynman · Answer

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