A techer pushed a 98 newton desk across a floor for a distance of 5 meters she exerted a horizontal force of 20 newtons. how much work was done?
work=applied force*distance
is it 490 j
100 J
To find out how much work was done, you can use the formula:
Work = Force × Distance × cos(θ)
In this case, the force applied is 20 newtons and the distance is 5 meters. However, we need to find the angle (θ) between the applied force and the direction of motion. Since it is not mentioned, we assume that the force is applied horizontally and the desk moves horizontally as well. In this case, the angle between the force and the direction of motion is 0 degrees.
Using the formula, we can calculate the work done:
Work = 20 newtons × 5 meters × cos(0°)
Since cos(0°) = 1, the equation becomes:
Work = 20 newtons × 5 meters × 1
Therefore, the work done is:
Work = 100 newton-meters or Joules (J)