Question 71: Gravitation

Question

A metal wire of uniform mass density having length $$L$$ and mass $$M$$ is bent to form a semicircular arc and a particle of mass $$\mathrm{m}$$ is placed at the centre of the arc. The gravitational force on the particle by the wire is :

Accepted Answer

Field at centre due to arc, $$I=\frac{2 G M \pi}{L^2}$$
$$	herefore \quad$$ Net force on mass, $$F=\frac{2 G M m \pi}{L^2}$$

Answer

$$\frac{\mathrm{GmM} \pi^2}{\mathrm{~L}^2}$$

Answer

$$\frac{\mathrm{GMm} \pi}{2 \mathrm{~L}^2}$$

Answer

0

Answer

$$\frac{2 \mathrm{GmM} \pi}{\mathrm{L}^2}$$

Gravitation

A metal wire of uniform mass density having length $L and mass M is bent to form a semicircular arc and a particle of mass \mathrm{m}$ is placed at the centre of the arc. The gravitational force on the particle by the wire is :

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