- #1
courtney1121
- 68
- 0
ok, got into an argument with a kid in my physics class about this one...
Which of the following are third-law partners?
a. A thrust force from its propeller pulls a plane forward; a drag force pushes it backward.
b. A car exerts a forward force on a trailer; the trailer tugs backward on the car.
c. A motorboat propeller pushes backward on the water; the water pushes forward on the propeller.
d. Gravity pulls down on a person sitting in a chair; the chair pushes back up on the person.
I just said d would be...he was saying b,c,and d...but I'm thinking there is a third force acting on both number b and c which will not make them equal and opposite in magnitudes.
Which of the following are third-law partners?
a. A thrust force from its propeller pulls a plane forward; a drag force pushes it backward.
b. A car exerts a forward force on a trailer; the trailer tugs backward on the car.
c. A motorboat propeller pushes backward on the water; the water pushes forward on the propeller.
d. Gravity pulls down on a person sitting in a chair; the chair pushes back up on the person.
I just said d would be...he was saying b,c,and d...but I'm thinking there is a third force acting on both number b and c which will not make them equal and opposite in magnitudes.