CBSE - Motion

If you whirl a stone on the end of the string and the string suddenly breaks, the stone will: (1) Fly off along the tangent to its circular path. (2) Fly directly towards you. (3) Spiral away from your hand. (4) Spiral in towards your hand.

Pick the false statement (1) One can calculate uniform acceleration (2) One can calculate non uniform acceleration from velocity-time graph. (3) One can calculate velocity from distance-time graph. (4) One can calculate speed from distance-time graph.

For the velocity time graph shown in figure, the distance covered by the body in the last two seconds of its motion is what fraction of the total distance covered in all the seven seconds ? (1) 1/2 (2) 1/4 (3) 1/3 (4) 2/3

The distance travelled by a body is directly proportional to the time, then the body is said to have - (1) Zero speed (2) Zero velocity (3) Constant speed (4) None of these

40 A body starts falling from height &#39;h&#39; and travels distance h/2 during the last second of motion. The time of travel (in sec.) is- (1) √ 2 -1 (2) 2 + √2 (3) √2+ √3 (4) √3 +2