Problem #4: Imagine you are standing on the edge of a cliff, holding two golf balls. You drop one ball straight off the cliff.

Question

You throw the second ball at the same time with an initial horizontal velocity (no viy).

Which ball will hit the ground first?

Draw a model and explain why using your knowledge about freefall and projectile motion.

Model & Explanation:

Answer 1

You throw the second ball at the same time with an initial horizontal velocity (no viy).

Which ball will hit the ground first?

Initial y velocity is zero in both cases, distance fallen is equal and the acceleration in equal therefore the time is also equal.

Mr. A