CBSE - Motion

In which of the following graphs are both runners moving at the same speed? (1) Graph-C (2) Graph-A (3) Graph-D (4) Graph-B

A body is moving with uniform velocity of 10 ms –1 The velocity of the body after 10 s is - (1) 100 ms –1 (2) 50 ms –1 (3) 10 ms –1 (4) 5 ms –1

The displacement-time graph for a body is given below. State whether the velocity and acceleration of the body in the region DE are positive , negative or Zero. (1) V= +v e but a=0 (2) V = -ve and a = -ve (3) V = + ve and a = + ve (4) V = +ve and a = -ve

Distance covered by a body from velocity-time graph is (1) Equal to the slope of the graph. (2) Area under the graph . (3) Is de note d by a line parallel to the time axis at any point on the distance axis. (4) Is denoted by a line parallel to the distance axis at any point on the time axis