Question 3.WE.5: A car of mass 500kg is travelling along a flat road. The for...

Step 1 Start by drawing a diagram of the car, showing the forces mentioned in the question (Figure 3.13). Calculate the resultant force on the car; the force to the right is taken as positive:
resultant force = 300 − 200 = 100N
Step 2 Now use F = ma to calculate the car’s acceleration:

So the car’s acceleration is 0.20  m  s^{-2}