Question

a glider traveling 25 mph (40.23 km/h) is affected by an outside force. in which of the following examples will the glider accelerate the most?

Explanation:

Step1: Recall Newton's second law

$F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. For a constant - mass object, acceleration is directly proportional to the net - force acting on it ($a=\frac{F}{m}$).

Step2: Compare the forces

We have three force values: 1 N, 3 N and 5 N. Since the mass of the glider is assumed to be constant, the greater the force, the greater the acceleration.

Answer:

The glider will accelerate the most when the outside force is 5 N (the second example where the force is 5 N).