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A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed v(d). The average speed for this round trip is
Options
(a) √v(u)v(d)
(b) v(d)v(u)/v(d)+v(u)
(c) v(u)+v(d)/2
(d) 2v(d)v(u)/v(d)+v(u)
Correct Answer:
2v(d)v(u)/v(d)+v(u)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
- A plank with a box on it at one end is gradually raised about the other end.
- A long solenoid has 500 turns. When a current of 2 ampere is passed through it
- Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ .
- A body is rolling down an inclined plane.If KE of rotation is 40% of KE in a translatory
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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