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Two particles of equal mass (m) each mov...


Two particles of equal mass (m) each move in a circle of radius (r) under the action of their mutual gravitational attraction find the speed of each particle.

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The correct Answer is:
`[v=sqrt((Gm)/(4R))]`
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PHYSICS GALAXY - ASHISH ARORA-GRAVITATION-Particle Exercise
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  2. Two particles of equal mass (m) each move in a circle of radius (r) un...

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  3. For particles of equal masses M that move along a circle of radius R u...

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  4. Mass M is split into two parts m and (M-m), which are then separated b...

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  7. The distance between the centres of the Moon and the earth is D. The m...

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  8. A solid sphere of mass m and radius r is placed inside a hollow thin s...

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  9. The gravitational field in a region is given by (2hati+2hatj)N/kg. Wha...

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  10. Inside a uniform sphere of density rho there is a spherical cavity who...

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  11. A small point mass m is placed at the centre of curvature of acircular...

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  12. A small point mass m is to be thrown with such a speed at a distance x...

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  13. Figure shows two uniform rods of mass M and length l placed on two per...

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  14. What will be acceleration due to gravity on the surface of the moon if...

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  15. The diameter of a planet is four times that of the earth. Find the tim...

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  16. Imagine a new planet having the same density as that of earth but 3 ti...

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  17. Weight fo a body of a mass m decreases by 1% when it is raised to heig...

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  18. A tunnel is dug along a chord of the earth. a perpendicular distance R...

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  19. Find the height over the earth\'s surface at which the weight of a bod...

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