The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

Engineering Mechanics
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

Coplanar non-concurrent forces

Coplanar concurrent forces

None of these

Non-coplanar concurrent forces

Coplanar non-concurrent forces

Coplanar concurrent forces

None of these

Non-coplanar concurrent forces

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Engineering Mechanics
The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)

ω².√(r² - y²)

ω.√(r² - y²)

ω.√(y² - r²)

ω².√(y² - r²)

ω².√(r² - y²)

ω.√(r² - y²)

ω.√(y² - r²)

ω².√(y² - r²)

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Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

2n

n

n²

2n - 1

2n

n

n²

2n - 1

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Engineering Mechanics
The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

45° + β/2

30° + β/2

60° + β/2

β/2

45° + β/2

30° + β/2

60° + β/2

β/2

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Engineering Mechanics
A machine having an efficiency greater than 50%, is known as

Non-reversible machine

Reversible machine

Neither reversible nor non-reversible machine

Ideal machine

Non-reversible machine

Reversible machine

Neither reversible nor non-reversible machine

Ideal machine

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

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 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 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 in direction and magnitude 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 by the sides of a polygon taken in order, then the forces are in equilibrium

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Engineering Mechanics

Engineering Mechanics The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

Engineering Mechanics The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)

Engineering Mechanics The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

Engineering Mechanics The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

Engineering Mechanics A machine having an efficiency greater than 50%, is known as

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

Engineering Mechanics
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

Engineering Mechanics
The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)

Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

Engineering Mechanics
The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

Engineering Mechanics
A machine having an efficiency greater than 50%, is known as

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