Question

Different forces were applied to five balls, and each force was applied for the same amount of time. The data is in the table.

A 4 column table with 3 rows. The first column is labeled Object with entries Ball A, Ball B, Ball C, Ball D. The second column is labeled Force in Newtons with entries 50 N, 60 N, 70 N, 80 N. The third column is labeled Time in seconds with entries 1.25, 1.25, 1.25, 1.25. The fourth column is labeled Impulse in Newtons times seconds with entries 62.5, 75, 87.5, 100.
If the force on ball A doubles while the time remains the same, what happens to the impulse?

It divides in half.
It does not change.
It doubles.
It quadruples.

Answer 1

It doubles.

Impulse = force × time. If the force on ball A doubles while time stays 1.25 s, the impulse goes from 62.5 N·s to 2 × 62.5 = 125 N·s.