Question

question 6 of 10
daryl ties a rope to a brick and lifts the brick straight up. the free - body diagram below shows the brick when it is suspended above the ground.
what is force 1 in this diagram?
a. weight
b. normal force
c. friction
d. tension

Explanation:

The rope is lifting the brick. Tension is the force exerted by a rope or string when it is pulling on an object. Force 1 acts upwards due to the rope, which is characteristic of tension. Weight acts downwards (Force 2), normal force acts perpendicular to a surface (not applicable here as the brick is suspended), and friction resists relative motion (not relevant in this vertical - lifting scenario).

Answer:

D. Tension