1. What are the units of the shaded area ?

2. What is the physical interpretation of the the shaded area ?

3. Determine the work done by the force shown in the graph as the object moves from position x=0 m to position x= 4m.

4. If the object (mass 2 kg) had velocity 2 m/s at position x = 0 m, what velocity will it have at position x = 4 m ?