6. An additional, unshown Force of air Resistance is also acting on the Train to give it a Resultant Force of zero Identify the size & direction of the air Resistance Force

Identify/Circle the correct letter

a. 40.000N backwards

b. 80.000N backwards

c. 40.000N forwards

d. 80.000N forwards

7. A car is travelling along a straight, horizontal road at constant Speed.

Which statement about forces on the car is correct?

a. There are no horizontal forces acting on the car.

b. There is a resultant force on the car in the direction of its movement.

c. There is a resultant force on the car in the direction opposite to its movement.

d. There is no resultant force acting on the car.

8. If the forces acting upon an object are balanced, then the object

a. must not be moving.

b. must be moving with a constant velocity.

C. must not be accelerating

d. none of these

Explain your answer.