A force acting on a body may

Strength of Materials
A force acting on a body may

retard its motion

introduce internal stresses

change its motion

All of the listed here

retard its motion

introduce internal stresses

change its motion

All of the listed here

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Strength of Materials
According to Lami's theorem

Three forces acting at a point will be in equilibrium

If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Three forces acting at a point can be represented by a triangle, each side being proportional to force

Three forces acting at a point will be in equilibrium

If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Three forces acting at a point can be represented by a triangle, each side being proportional to force

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Strength of Materials
A cable with a uniformly distributed load per horizontal metre run will take the following shape

Straight line

Elliptical

Parabola

Hyperbola

Straight line

Elliptical

Parabola

Hyperbola

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Strength of Materials
If a number of forces act simultaneously on a particle, it is possible

To replace them by a single force through C.G.

To replace them by a single force

To replace them by a couple

Not a replace them by a single force

To replace them by a single force through C.G.

To replace them by a single force

To replace them by a couple

Not a replace them by a single force

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Strength of Materials
The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, â€“ ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be

20 kg, + ve sense

10 kg, - ve sense

20 kg, - ve sense

10 kg, + ve sense

20 kg, + ve sense

10 kg, - ve sense

20 kg, - ve sense

10 kg, + ve sense

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Strength of Materials
In actual machines

mechanical advantage is equal to velocity ratio

mechanical advantage is unity

mechanical advantage is greater than velocity ratio

mechanical advantage is less than velocity ratio

mechanical advantage is equal to velocity ratio

mechanical advantage is unity

mechanical advantage is greater than velocity ratio

mechanical advantage is less than velocity ratio

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Strength of Materials

Strength of Materials A force acting on a body may

Strength of Materials According to Lami's theorem

Strength of Materials A cable with a uniformly distributed load per horizontal metre run will take the following shape

Strength of Materials If a number of forces act simultaneously on a particle, it is possible

Strength of Materials The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, â€“ ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be

Strength of Materials In actual machines

Strength of Materials
A force acting on a body may

Strength of Materials
According to Lami's theorem

Strength of Materials
A cable with a uniformly distributed load per horizontal metre run will take the following shape

Strength of Materials
If a number of forces act simultaneously on a particle, it is possible

Strength of Materials
The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, â€“ ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be

Strength of Materials
In actual machines