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A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant spped. If the stone makes 22 revolutions in 44 s, what is the magnitude and direction of acceleration of the stone?
Options
(a) ?ￂﾲ/4 ms⁻² and direction along the radius towards the centre
(b) ?ￂﾲ ms⁻² and direction along the radius away from centre
(c) ?ￂﾲ ms⁻² and direction along the radius towards the centre
(d) ?ￂﾲ ms⁻² and direction along the tangent to the circle
Correct Answer:
?ￂﾲ ms⁻² and direction along the radius towards the centre
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- If the radioactive dacay constant of radium is 1.07 x 10⁻⁴ year⁻¹, then its half-life
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A proton and helium nucleus are shot into a magnetic field at right angles to the field
- Two closed pipes produce 10 beats per second when emitting their fundamental nodes.
- If the radioactive dacay constant of radium is 1.07 x 10⁻⁴ year⁻¹, then its half-life
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
- The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 4.
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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