## Applied Mechanics and Graphic Statics If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

Both (A) and (C)
Always reduce to a resultant force
Be in equilibrium
Always reduce to a couple

## Applied Mechanics and Graphic Statics A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is(i) 5000 Nm(ii) 5000 kg.m(iii) 5000 J

Both (i) and (iii)
Both (ii) and (iii)
Only (ii)
All (i), (ii) and (iii)

Circular
Catenary
Parabolic
Cubic parabola

108.5 kg
102.5 kg
105.5 kg
110 kg

## Applied Mechanics and Graphic Statics The force acting on a point on the surface of a rigid body may be considered to act

At the centre of gravity of the body
At any point on the surface normal to the line of action of the force
On any point on the line of action of the force
On the periphery of the body

## Applied Mechanics and Graphic Statics A particle moving with a simple harmonic motion, attains its maximum velocity when it passes

Through a point at half amplitude
Through the mean position
The extreme point of the oscillation
None of these