Question

multiple select question
select all that apply
a skydiver reaches terminal velocity during her dive. which statements are correct about her motion while she is traveling at terminal velocity?
there are now no forces acting on her.
she is still accelerating downward.
she has stopped moving.
the air resistance force is equal in magnitude to her weight.
she is no longer accelerating.
there is no net force acting on her.

Explanation:

Terminal velocity is the constant velocity a falling object reaches when the upward air resistance equals the downward gravitational force (weight) of the object. By Newton's first law, when net force is zero, acceleration is zero, and velocity remains constant.

1. "There are now no forces acting on her." is wrong: weight and air resistance still act.
2. "She is still accelerating downward." is wrong: net force is zero, so acceleration is zero.
3. "She has stopped moving." is wrong: she moves at constant terminal velocity.
4. "The air resistance force is equal in magnitude to her weight." is correct: this balance creates terminal velocity.
5. "She is no longer accelerating." is correct: zero net force means zero acceleration.
6. "There is no net force acting on her." is correct: upward air resistance cancels downward weight.

Answer:

• The air resistance force is equal in magnitude to her weight.
• She is no longer accelerating.
• There is no net force acting on her.