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A particle moves in a circle of radius 5 cm with constant speed and time period 0.2πs. The acceleration of the particle is
Options
(a) 15 m/s²
(b) 25 m/s²
(c) 36 m/s²
(d) 5 m/s²
Correct Answer:
5 m/s²
Explanation:
Centripetal acceleration aᵥ = 𝜔²r
= ( 2π / T)² r
= (2π / 0.2π)² x 5 x 10⁻²
= 5 m/s²
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool
- A car is moving with uniform acceleration. It covers 200 m in 2 sec and 220 m
- The equivalent resistance of two resistors connected in series is 6 Ω
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- If Q, E and W denote respectively the heat added, change in internal energy
Question Type: Apply (15)
Difficulty Level: Easy (1008)
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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