kg/sec
kg/sec2
kg.m
kg/m2

## Applied Mechanics and Graphic Statics One end of an elastic string of natural length ‘l’ and modulus ‘X’ is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance ‘x’, held at rest and then released.The motion is

None of these
A rectilinear motion with constant speed
A simple harmonic motion
A damped oscillatory motion

1
1/10000
100
1/100

## Applied Mechanics and Graphic Statics The following is not a law of static friction:

The force of friction always acts in a direction opposite to that in which the body tends to move
The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces
The force of friction is dependent upon the area of contact
The force of friction depends upon the roughness of the surface

Circular
Catenary
Cubic parabola
Parabolic

## Applied Mechanics and Graphic Statics Energy may be defined as

Capacity of doing work
All listed here
Rate of doing work
Power of doing work