You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Sentence: Tom has recently gotten a prosthetic arm and he notices that it is somewhat stronger than his human arm. Tom tosses a tennis ball to his friend, first with the human arm then with the prosthetic arm. Question: Which arm will toss the ball a shorter distance?
Tom's human arm

Sentence: Samuel dropped a small light pebble and a large heavy rock off a cliff at the same time. Question: Which one hit the ground at the bottom of the cliff first?
the large rock

Sentence: Sliding a stake across the carpet results in less friction then sliding it across the drapes. Question: Which surface will force the stake to travel slower?

drapes