A spring is stretched 40mm by force 15N, what is the work done by the force??
work=energy in spring=1/2 k x^2
k=displacementinMeters/forceinNewtons
To calculate the work done by a force, you can use the formula:
Work = Force × Displacement × cosine(theta)
In this case, we are given the force (15N) and the displacement (40mm). We need to convert the displacement to meters, as the unit for force is Newtons (N).
1 meter = 1000 mm
So, 40 mm = 40/1000 = 0.04 meters
Now we can calculate the work done:
Work = 15N × 0.04m × cosine(theta)
Since the angle between the force and displacement is not given, we can assume theta = 0 degrees. In this case, the cosine of 0 degrees is 1.
Therefore, the work done by the force is:
Work = 15N × 0.04m × 1 = 0.6 Joules
So, the work done by the force is 0.6 Joules.