Question:
A couple produces a
A couple produces a
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Think of turning a screwdriver or the steering wheel of a car with both hands. You are applying a couple to cause rotation without moving the whole object to a new location.
Updated On: Apr 29, 2026
- linear motion
- translational motion
- vibrational motion
- rotational motion
- both rotational and vibrational motion
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
A "couple" in physics refers to two equal and opposite forces whose lines of action do not coincide.
Step 3: Detailed Explanation:
Since the two forces are equal and opposite, the net external force (\(\Sigma F\)) acting on the body is zero.
Because the net force is zero, there is no translational (linear) motion.
However, because the forces act at different points, they create a net torque (\(\tau\)).
This net torque causes the body to rotate about its center of mass.
Therefore, a couple produces purely rotational motion.
Step 4: Final Answer:
A couple produces rotational motion.
A "couple" in physics refers to two equal and opposite forces whose lines of action do not coincide.
Step 3: Detailed Explanation:
Since the two forces are equal and opposite, the net external force (\(\Sigma F\)) acting on the body is zero.
Because the net force is zero, there is no translational (linear) motion.
However, because the forces act at different points, they create a net torque (\(\tau\)).
This net torque causes the body to rotate about its center of mass.
Therefore, a couple produces purely rotational motion.
Step 4: Final Answer:
A couple produces rotational motion.
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