The range of projectile (R) on an upward inclined plane is

Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

g. cos² β/2u². sin (α + β). cos α

2u². sin (α + β). cos α/g. cos² β

2u². sin (α - β). cos α/g. cos² β

g. cos² β/2u². sin (α - β). cos α

g. cos² β/2u². sin (α + β). cos α

2u². sin (α + β). cos α/g. cos² β

2u². sin (α - β). cos α/g. cos² β

g. cos² β/2u². sin (α - β). cos α

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω3.y

ω2/y

ω.y

ω2.y

ω3.y

ω2/y

ω.y

ω2.y

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Engineering Mechanics
A screw jack used for lifting the loads is

None of these

An ideal machine

A non-reversible machine

A reversible machine

None of these

An ideal machine

A non-reversible machine

A reversible machine

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Engineering Mechanics
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)

None of these

tan(α + φ)/tanα

tan(α - φ)/tanα

tanα/tan (α + φ)

None of these

tan(α + φ)/tanα

tan(α - φ)/tanα

tanα/tan (α + φ)

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Engineering Mechanics
The forces, which meet at one point and their lines of action also lie on the same plane, are known as

Coplanar concurrent forces

Non-coplanar non-concurrent forces

Non-coplanar concurrent forces

Coplanar non-concurrent forces

Coplanar concurrent forces

Non-coplanar non-concurrent forces

Non-coplanar concurrent forces

Coplanar non-concurrent forces

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Engineering Mechanics
Which is the correct statement about law of polygon of forces?

If a polygon representing forces acting at a point is closed then forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

If a polygon representing forces acting at a point is closed then forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium

If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium

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Engineering Mechanics

Engineering Mechanics The range of projectile (R) on an upward inclined plane is

Engineering Mechanics The acceleration of a particle moving with simple harmonic motion, at any instant is given by

Engineering Mechanics A screw jack used for lifting the loads is

Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)

Engineering Mechanics The forces, which meet at one point and their lines of action also lie on the same plane, are known as

Engineering Mechanics Which is the correct statement about law of polygon of forces?

Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

Engineering Mechanics
A screw jack used for lifting the loads is

Engineering Mechanics
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)

Engineering Mechanics
The forces, which meet at one point and their lines of action also lie on the same plane, are known as

Engineering Mechanics
Which is the correct statement about law of polygon of forces?