ENGINEERING MECHANICS QUIZ

β/2

30° + β/2

60° + β/2

45° + β/2

tanα/tan (α + φ)

None of these

tan(α + φ)/tanα

tan(α - φ)/tanα

2π. √(l/g)

(1/2π). √(l/g)

(1/2π). √(g/l)

None of these

None of these

Less than

Greater than

Equal to

Between 70 and 80%

Between 60 and 70 %

Between 80 and 90%

1

Greater than

Equal and opposite to

Less than

Equal to

Static friction

Limiting friction

Coefficient of friction

Dynamic friction

Greater than 50%

Less than 50%

Equal to 50%

1

ω.r

ω².r

ω²/r

ω/r

Shape of the surfaces

Nature of surfaces

All of these

Area of contact