A solid sphere of mass $$10$$ kg is placed on a rough surface having coefficient of friction μ $$=$$ $$0.1$$. A constant force F $$=$$ $$7$$ N is applied along a line passing through the centre of the sphere as shown in the figure. The value of frictional force on the sphere is

Question

A solid sphere of mass $$10$$ kg is placed on a rough surface having coefficient of friction μ $$=$$ $$0.1$$. A constant force F $$=$$ $$7$$ N is applied along a line passing through the centre of the sphere as shown in the figure. The value of frictional force on the sphere is

Infinity Learn · Accepted Answer

Let f be frictional force towards left for pure rolling.a $$=$$ Rαwhere, a $$=$$ $$F-fm$$ $$=$$ $$7-f10$$          α $$=$$ τI $$=$$ fRI $$=$$ $$fR25mR2$$ $$=$$ $$5f2mRHence$$, $$7-f10$$ $$=$$ $$5f10$$    ⇒f $$=$$ $$2N$$

A solid sphere of mass 10 kg is placed on a rough surface having coefficient of friction $μ = 0.1$ . A constant force F = 7 N is applied along a line passing through the centre of the sphere as shown in the figure. The value of frictional force on the sphere is

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A solid sphere of mass 10 kg is placed on a rough surface having coefficient of friction μ = 0.1. A constant force F = 7 N is applied along a line passing through the centre of the sphere as shown in the figure. The value of frictional force on the sphere is

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A solid sphere of mass 10 kg is placed on a rough surface having coefficient of friction $μ = 0.1$ . A constant force F = 7 N is applied along a line passing through the centre of the sphere as shown in the figure. The value of frictional force on the sphere is