ENGINEERING MECHANICS QUIZ

P = mW - C

P = m/W + C

P = C - mW

P = mW + C

P/m.a = 0

P + m.a = 0

P - m.a = 0

P × m.a = 0

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

Kinematic friction

Limiting friction

Sliding friction

Rolling friction

ωr

ω²r

ω

ω/r

Shape of the surfaces

All of these

Area of contact

Nature of surfaces

2L/3

L/2

3L/4

L/3

2n

2n - 1

n²

n

P = W (sinα + μcosα)

P = W tanα

P = W tan (α + φ)

P = W (cosα + μsinα)

None of these

g cosθ

g tanθ

g sinθ