How many arrows of force would be needed in a free body diagram of a rocket taking off from the moon? Ignore any solar system objects other than the moon itself.
One
Two
Four
Three
A person is trying to lift a crate that has a mass of 15.3 kg. The normal force of the floor is currently supplying 150 N of force. How much force does the person need to supply in order to pick up the crate?
150 N
144 N
294 N
130 N
A person is trying to lift a crate that has a mass of 30 kg. The normal force of the floor is 150 N of force. How much force is the person currently exerting?
114 N
150 N
294 N
To answer the first question about the free body diagram of a rocket taking off from the moon, we need to consider the forces acting on the rocket. There are typically four forces that should be represented in a free body diagram: weight, thrust, drag, and lift. However, in this case, we are instructed to ignore any solar system objects other than the moon itself.
Therefore, we can eliminate the force of drag and lift from the diagram. The weight of the rocket on the moon can be represented by a downward arrow, which is the force due to the gravitational pull of the moon on the rocket. Additionally, we should include an upward arrow for the thrust force, which is the force generated by the rocket engines.
So, the correct answer is: Two.