/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 33 A hollow sphere, ring, disc and ... [FREE SOLUTION] | 91Ó°ÊÓ

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A hollow sphere, ring, disc and solid sphere each of mass \(1 \mathrm{~kg}\) and radius \(1 \mathrm{~m}\) is released from rest on an identical inclined plane of inclination \(37^{\circ} . \tan 37^{\circ}=3 / 4\) and $g=10 \mathrm{~m} / \mathrm{s}^{2}$ ). The co-efficient of friction between body and surface is \(\mu\). Then match the column.A hollow sphere, ring, disc and solid sphere each of mass \(1 \mathrm{~kg}\) and radius \(1 \mathrm{~m}\) is released from rest on an identical inclined plane of inclination $37^{\circ} . \tan 37^{\circ}=3 / 4\( and \)g=10 \mathrm{~m} / \mathrm{s}^{2}$ ). The co-efficient of friction between body and surface is \(\mu\). Then match the column.

Short Answer

Expert verified
In conclusion, the accelerations of the four objects on the inclined plane can be compared as follows: The solid sphere will have the highest acceleration, followed by the disk, hollow sphere, and ring. This order may vary depending on the value of the coefficient of friction, µ.

Step by step solution

01

1. Calculate the moment of inertia for each object:

For a hollow sphere: \(I = \frac{2}{3}mr^2\) For a ring: \(I = mr^2\) For a disc: \(I = \frac{1}{2}mr^2\) For a solid sphere: \(I = \frac{2}{5}mr^2\) Since m = 1 and r = 1, we can simplify these expressions: Hollow sphere: \(I = \frac{2}{3}\) Ring: \(I = 1\) Disk: \(I = \frac{1}{2}\) Solid sphere: \(I = \frac{2}{5}\)
02

2. Calculate the acceleration for each object:

We know the angle of inclination is 37 degrees, with \(\tan 37^\circ = \frac{3}{4}\). To find the acceleration for each object, we'll use the formula: \(a = \frac{g\sin{\theta}(1 - \mu k)}{1 + k}\) Here, \(k = \frac{I}{mr^2}\) and g = 10 m/s². Using the calculated values of moment of inertia, we can find the acceleration for each object: Hollow sphere: \(a = \frac{10 \times \frac{3}{5}(1 - \mu \frac{2}{3})}{1 + \frac{2}{3}}\) Ring: \(a = \frac{10 \times \frac{3}{5}(1 - \mu)}{1 + 1}\) Disk: \(a = \frac{10 \times \frac{3}{5}(1 - \mu \frac{1}{2})}{1 + \frac{1}{2}}\) Solid sphere: \(a = \frac{10 \times \frac{3}{5}(1 - \mu \frac{2}{5})}{1 + \frac{2}{5}}\)
03

3. Compare the accelerations:

Now we have the expressions for the acceleration of each object. To compare the accelerations, we need to analyze these expressions with respect to the coefficient of friction, µ. If µ = 0 (no friction), all objects will have the same acceleration, which is: \(a = \frac{10 \times \frac{3}{5}}{1 + k}\) Solid sphere has the smallest value of k, followed by the disk, hollow sphere, and ring. As µ increases, the frictional force becomes more significant, and the accelerations of the objects will be affected differently. In general, the solid sphere's acceleration will be less affected by friction than the other objects, leading to a higher acceleration than the others. In conclusion, when comparing the accelerations of the four objects on the inclined plane, we can say that the solid sphere will have the highest acceleration, followed by the disk, hollow sphere, and ring. This order may vary depending on the value of the coefficient of friction, µ.

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