Mathematics · Electrostatics
A toy car with charge q moves on a frictionless horizontal plane surface under the influence of a uniform electric field E. Due to the force qE, its velocity increases from 0 to 6 m/s in one second duration. At that instant, the direction of the field is reversed. The car continues to move for two more seconds under the influence of this reversed field. The average velocity and the average speed of the toy car between 0 to 3 seconds are respectively:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12 m/s, 4 m/s
- 21 m/s, 3 m/s✓
- 31.5 m/s, 3 m/s
- 41 m/s, 3.5 m/s
Correct answer
1 m/s, 3 m/s
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