102. Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then
103. A block ot mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will __________ with the increase in coefficient of friction.
104. The problem must be studied ......... all the angles.?
105. The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.
106. All the following are invertebrates except?
107. The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)
108. In actual machines, mechanical advantage is __________ velocity ratio.
109. The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
110. If three coplaner forces acting on a point are in equilibrium, then each force is proportional to the sine, of the angle between the other two.
111. A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of
112. You should avail ......... the oppertunity to learn English grammer.?
113. When the spring of a watch is wound, it will possess
114. In a framed structure, as shown in the below figure, the force in the member CD is tensile in nature.
115. An irregular body may have more than one centre of gravity.
116. The rate of doing work is known as
117. In a wormed geared pulley block, if the number of teeth on the worm wheel is doubled, then its velocity ratio is also doubled.
118. Moment of inertia of a circular section about its diameter (d) is
119. The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.
120. In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
121. The unit of work in S.I. units is
122. The static friction
123. Which of the following became the most important city of northern India under Harsha?
124. The acceleration of a particle moving with simple harmonic motion is __________ at themean position.
125. The velocity of a particle moving with simple harmonic motion is __________ at the mean position.