The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be_________________?
The coefficient of friction depends on_________________?
The ratio of limiting friction and normal reaction is known as_______________?
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be__________________?
Frictional force encountered after commencement of motion is called________________?
Pick up wrong statement about friction force for dry surfaces. Friction force is________________?
A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation_________________?
A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_________________?
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if______________?
Two coplanar couples having equal and op-posite moments_________________?
