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

## Applied Mechanics and Graphic Statics The following statement is one of the laws of Dynamic friction

The force of friction always acts in a direction opposite to that in which a body is moving
For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed
The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction
All of these

## Applied Mechanics and Graphic Statics The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface

Gravity of the sun and the moon
None of these
Uneven distribution of the gravitational field
Aerodynamic forces

g/3
g/4
g/2
g/5

109.5 mm from A
132.5 mm from A
119.5 mm from A
125.5 mm from A

100 kg
120 kg
50 kg
750 kg