Question

A 1-lb block and a 100-lb block are placed side by side at the top of a frictionless hill. Each is given a very light tap to begin their race to the bottom of the hill. In the absence of air resistance, what can you conclude about the outcome of the race?

a)The 1-lb block wins the race.
b)The 100-lb block wins the race.
c)The two blocks end in a tie.
d)There’s not enough information to determine which block wins the race

Answer 1

Answer:

c)The two blocks end in a tie.

Explanation:

As both a given the same light tap, and we are ignoring air resistance and friction here, the only acceleration that exert on both blocks that makes them move is the constant gravitational acceleration, and that is the same no matter where they are on Earth and how much their mass is. So the 2 block would end in a tie.