1.1. State what is meant by a vector quantity and give one example.

1.2. Figure 1 shows a ball is suspended from a cable. The ball is pulled into the position shown by a rope that is kept horizontal.

Figure 1

In the position shown, the ball is in equilibrium. 

State the force and component which balance:

• The force of the rope on the ball.

• The weight of the ball.

1.3. When in equilibrium, the tension T₁ is equal to 10.1 N and the tension T₂ is equal to 15.7 N.

Calculate the weight of the ball.

1.4. The ball is then detached from the rope, so it is hanging only by the cable.

State the new tension in the cable.