The force of magnitude Fx acting in the x-direction on a 3.5 kg particle varies in time as shown in the figure. Calculate the impulse of this force. Answer in units of
N-s.

42 N-s

Explanation: The area under the curve is equal to the impulse, so you take the area of the two triangles and add it to the area of the rectangle.

Area of a triangle: 1/2bh

Area of a rectangle: bxh

2(1/2x2x7)=14+(4x7)=42 N-s

the independent variable, or the one that is intentionally manipulated is the speed.

trig 15.3 cos