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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)

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