(adsbygoogle = window.adsbygoogle || []).push({}); Two spheres are launched horizontally from a 1.0m high table. Sphere A has a mass of 1.0kg and is launched with an initial speed of 5.0 m/s. Sphere B has a mass B has a mass of 0.4kg and is launched with an inital speed of 2.5 m/s.

Compare the times for each sphere to hit the floor.

Compare the distances that each travels from the edge of the table.

I just need some explaination in the concept of the first question.

I know the the equation used to find the time is [tex] t = \sqrt{ \frac {2h}{g}} [/tex] and the answer is 0.45s

But I don't understand why the different masses and velocities don't have an effect on the time to fall.

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# Homework Help: Projectile Motion Explaination

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