wl/4y
wl
wl/2y
wl/8y

Periodic time
Amplitude
Oscillation
Frequency

n rpm
2n rpm
n/4 rpm
n/2 rpm

## 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

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

v = ω √(r² + y²)
y = ω √(y - r)
v = ω √(y² - r²)
v = ω √(r² - y²)

## Applied Mechanics and Graphic Statics When a body of mass M1 is hanging freely and another of mass M2 lying on a smooth inclined plane(α) are connected by a light index tensile string passing over a smooth pulley, the acceleration of the body of mass M1, will be given by

g(M2 × M1 sin α)/(M2 - M1­) m/sec²
g(M2 + M1 sin α)/(M1 + M2­) m/sec²
g(M1 + M2 sin α)/(M1 + M2­) m/sec
g(M1 - M2 sin α)/(M1 + M2­) m/sec²