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A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30⁰, the box starts to slip and slides 4.0 m down the plank in 4.0 s. The coefficients of static and kinetic friction between the box and the plank will be, respectively.
Options
(a) 0.5 and 0.6
(b) 0.4 and 0.3
(c) 0.6 and 0.6
(d) 0.6 and 0.5
Correct Answer:
0.6 and 0.5
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- At a given temperature the root mean square velocities of oxygen and hydrogen
- An ideal gas is compressed to half its initial volume by means of several processes.
- Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm
- The current in the windings of a toroid is 2.0 A. There are 400 turns
- Alternating current cannot be measured by D.C Ammeter because
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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