Question

looking closer

1. apply concepts what

would happen to the truck
in the bottom picture if the
force of gravity were larger
than the force of friction?

reading check

1. define what is a

lubricant?

Explanation:

1. If the force of gravity were larger than the force of friction, the net force acting on the truck would be in the direction of gravity. According to Newton's second law of motion (\(F = ma\)), this net force would cause the truck to accelerate. Since gravity acts downward (assuming the relevant direction in the context of the truck's motion, perhaps on an incline), the truck would accelerate downwards.
2. A lubricant is a substance that is used to reduce friction between surfaces in contact. It can do this by creating a thin film between the surfaces, which allows them to slide over each other more easily. Examples of lubricants include oil, grease, and some powders.

Answer:

1. The truck would accelerate (most likely in the direction of the gravitational force, e.g., downward if on an incline).
2. A lubricant is a substance that reduces friction between surfaces.