1.

Give an example to each situation in daily life. i) Speed changes when direction remains constant.ii) Direction of motion changes when speed remains constant. iii) Speed and direction simultaneously change.

Answer»

i) The palk taken by a ball which was released from the top of the inclined plane. Here the direction of motion remains constant but velocity gradually increases. 

ii) Whirl a stone which is tied to the end of the string continuously. Here it’s direction of motion changes but speed remains constant.

 iii) The path taken by a stone, which was thrown into the air. Here speed and direction of the motion both changes simultaneously.


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