71201. If the gravitational acceleration at any place is doubled, then the weight of a body will be
71202. The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
71203. The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
71204. The velocity ratio for the second system of pulleys is n.
71205. The law of motion involved in the recoil of gun is
71206. When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration.
71207. A machine which is not capable of doing any work in the reversed direction, after the effort is removed, is called a reversible machine.
71208. The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is
71209. When two elastic bodies collide with each other,
71210. The centre of gravity of a triangle lies at a point where its medians intersect each other.
71211. In order to double the period of simple pendulum, the length of the string should be
71212. The moment of inertia of a square of side a about its base is a4/ 3.
71213. If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys
71214. The centre of gravity of a right angled triangle lies at its geometrical centre.
71215. Vectors method for the resultant force is also called polygon law of forces.
71216. Two equal and opposite parallel forces whose lines of action are different form a couple.
71217. When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.
71218. A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The centre of gravity of the section will lie
71219. The maximum velocity of a particle moving with simple harmonic motion is
71220. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.
71221. A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
71222. The Cholas maintained close political, and matrimonial relations with?
71223. The unit of power in S.I. units is
71224. According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through centre of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
71225. The resultant of two equal forces P making an angle θ, is given by
71226. The force, by which the body is attracted, towards the centre of the earth, is called
71227. Coplaner concurrent forces are those forces which
71228. The power developed by a body acted upon by a torque T newton metre (N - m) and revolving at ω radian/s is given by
71229. The time taken by a particle for one complete oscillation is known as periodic time.
71230. The velocity ratio of a first system of pulleys with 4 pulleys is
71231. One joule means that
71232. The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is
71233. The velocity ratio for the first system of pulleys is(where n is the number of pulleys.)
71234. The ideal angle of banking provided on the curves on roads depends upon
71235. If a pendulum is taken 1 km below the earth surface in a mine, it will __________ in time.
71236. The moment of inertia of a thin disc of mass m and radius r, about an axis through its centre of gravity and perpendicular to the plane of the disc is
71237. The linear velocity of a body rotating at ω rad / s along a circular path of radius r is given by
71238. A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.
71239. The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
71240. A non-reversible machine is also called a self-locking machine.
71241. Mass moment of inertia of a thin rod about its one end is __________ the mass moment of inertia of the same rod about its mid-point
71242. Moment of inertia of a hollow rectangular section as shown in the below figure about Y-Y axis, is not the same as that about X-X axis.
71243. The angle of the inclined plane at which a body just begins to slide down the plane, is called helix angle.
71244. The forces, which meet at one point and their lines of action also lie on the same plane, are known as
71245. The amount by which the outer edge of the rail is raised, is known as super-elevation.
71246. The unit of energy in S.I. units is
71247. The angle of inclination of the plane at which the body begins to move down the plane, is called
71248. If Square root of 3=732 then nearest value of 1/ Square root 3 among given values is
71249. The potential energy stored by a spring in compression, is called strain energy.