Answer :
To solve the question on how much work is done when a force is applied to an object, we use the formula for work. Work done is defined as the product of the force applied in the direction of motion and the distance traveled by the object in that direction. Mathematically, this is represented as:
\[ \text{Work} = \text{Force} \times \text{Distance} \]
Where:
- Work is the energy transferred to or from an object via the application of force along a displacement, measured in Joules (J).
- Force is the push or pull acting upon the object, causing the displacement, measured in Newtons (N).
- Distance is the measure of how far the object moves as a result of the applied force, measured in meters (m).
Given in the question:
- The force applied is 20 N (Newtons).
- The distance through which the truck is pushed is 10 m (meters).
We plug these values into our formula to calculate the work done:
\[ \text{Work} = 20 \, N \times 10 \, m = 200 \, J \]
Therefore, the work done in this situation is 200 Joules.
The correct answer is:
D. 200J
