A puck is sliding along a frictionless surface at constant velocity.

Which of the following choices correctly models the forces acting on the puck?

Responses

A puck with two equal opposing forces. Normal force (surface on puck) points straight up, and gravitational force (Earth on puck) points straight down.
Arrows and labels added by FlipSwitch.
Cline, Dusty/Shutterstock
Image with alt text: A puck with two equal opposing forces. Normal force (surface on puck) points straight up, and gravitational force (Earth on puck) points straight down. Arrows and labels added by FlipSwitch. Cline, Dusty/Shutterstock

A puck with three force vectors. Two are equal opposing forces: gravitational (Earth on puck) straight down, and normal force (surface on puck) straight up. An equal force of initial push (person on puck) points to the right.
Arrows and labels added by FlipSwitch.
Cline, Dusty/Shutterstock
Image with alt text: A puck with three force vectors. Two are equal opposing forces: gravitational (Earth on puck) straight down, and normal force (surface on puck) straight up. An equal force of initial push (person on puck) points to the right. Arrows and labels added by FlipSwitch. Cline, Dusty/Shutterstock

A puck with two equal force vectors: gravitational force (Earth on puck) straight down, and initial push (person on puck) to the right.
Arrows and labels added by FlipSwitch.
Cline, Dusty/Shutterstock
Image with alt text: A puck with two equal force vectors: gravitational force (Earth on puck) straight down, and initial push (person on puck) to the right. Arrows and labels added by FlipSwitch. Cline, Dusty/Shutterstock

A puck with one force vector to the right: initial push (person on puck).

5 answers

C: A puck with two equal opposing forces: gravitational force (Earth on puck) straight down, and normal force (surface on puck) straight up.
do u mean a?
No, I mean C. The correct choice is a puck with two equal force vectors: gravitational force (Earth on puck) straight down, and initial push (person on puck) to the right. This accurately models the forces acting on the puck as it slides along a frictionless surface at constant velocity, because once the puck is moving at a constant velocity, the only force acting on it is the initial push. The gravitational force is balanced by the normal force, which is equal in magnitude and opposite in direction to the gravitational force.
u said it wrong at first
I apologize for the mistake in my initial response. Thank you for bringing it to my attention. To clarify, choice C accurately models the forces acting on the puck as it slides along a frictionless surface at constant velocity, with two equal force vectors: gravitational force (Earth on puck) straight down, and initial push (person on puck) to the right.