Question

What is the value of the impulse obtained from the graph?

Answer 1

C) 9 kilogram meters/second

Explanation:

The impulse is defined as the integral of the force over the time:

$J=\int F dt$

in a force-time graph, the impulse corresponds to the area under the curve. Therefore, in this case we can calculate the impulse by finding the area of the triangle.

The base is 3 s, while the height is 6 N, therefore the area (and the impulse) is

$J=\frac{(3 s)(6 N)}{2}=9 kg m/s$