226. Pick up the incorrect statement from the following. In a simple harmonic motion
227. The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of
228. The point about which combined motion of rotation and translation of a rigid body takes place, is known as
229. A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is
230. A point subjected to a number of forces will be in equilibrium, if
231. What was the rank of India in the medal list of Guangzhou Asian games?
232. The horizontal reaction at the support A of the structure shown in below figure, is
233. Periodic time of body moving with simple harmonic motion, is
234. On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts
235. The centre of gravity of a plane lamina will not be at its geometrical centre if it is a
236. The motion of a particle moving with S.H.M. from an extremity to the other, constitutes
237. Two parallel forces 20 kg and 15 kg act. In order that the distance of the resultant from 20 kg force may be the same as that of the former resultant was from 15 kg, the 20 kg force is diminished by
238. If two equal forces of magnitude P act at an angle θ, their resultant, will be
239. A body of weight 14 g appears to weight 13 g when weighed by a spring balance in a moving lift. The acceleration of the lift at that moment was
240. The centre of gravity of a quadrant of a circle lies along its central radius at a distance of
241. A geo-stationary satellite is one which orbits the earth with a velocity of rotation of
242. The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane
243. The load shared by the member BC of the structure shown in below figure is
244. The nation to which the U.N. Secretary General Kofi Annan belongs to?
245. If a body is acted upon by a number of coplaner non-concurrent forces, it may
246. M.I. of solid sphere, is
247. The centre of gravity of a triangle is at the point where three
248. The forces which meet at one point and have their lines of action in different planes are called
249. At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is
250. The equation of motion of a particle starting from rest along a straight line is x = t3 - 3t2 + 5. The ratio of the accelerations after 5 sec and 3 sec will be