AP Physics 1 : Tension

Study concepts, example questions & explanations for AP Physics 1

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Example Questions

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Example Question #816 :Ap Physics 1

A 20 kg box hangs in an elevator by a cord rated to withstand a tension force of 250 N. If the elevator, from rest, moves upward until the cord breaks, what was the acceleration of the elevator when the cord broke? Assume

Possible Answers:

None of these

Correct answer:

Explanation:

Start with the formula for force and solve for acceleration. Then subtract the acceleration of gravity because the elevator is moving up.

Example Question #817 :Ap Physics 1

A spring is attached to a rope that is hanging from the ceiling. A block of massis attached to the end of the spring which has a constant of。振幅会导致最低绳te什么nsion of?

我gnore the mass of the rope and spring and assume simple harmonic motion.

Possible Answers:

Correct answer:

Explanation:

There are two forces contributing to tension in the rope: the weight of the mass and the force of the spring. When the tension of the rope is zero, we know that these two forces are equal and opposite. Furthermore, the weight of the mass will always be pointed down, so the force of the spring (relative to the rope) will be pointed upward. This occurs in a moment of compression of the spring. With that said, we just need to solve the following expression:

Rearranging for displacement:

Plugging in our values:

Example Question #818 :Ap Physics 1

Jennifer has a mass ofand is swinging on along rope at。Determine the tension in the rope at the bottom of her swing.

Possible Answers:

Correct answer:

Explanation:

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