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2.Motion in Straight Line
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The displacement versus time graph for a body moving in a straight line is shown in figure. Which of the following regions represents the motion when no force is acting on the body
A$ab$
B$bc$
C$cd$
D$de$
Solution
(c) In part $CD$ displacement-time graph shows constant slope i.e. velocity is constant. It means no acceleration or no force is acting on the body.
Standard 11
Physics
Similar Questions
Match the following columns.
| colum $I$ | colum $II$ |
| $(A)$ Constant positive acceleration | $(p)$ Speed may increase |
| $(B)$ Constant negative acceleration | $(q)$ Speed may decrease |
| $(C)$ Constant displacement | $(r)$ Speed is zero |
| $(D)$ Constant slope of $a-t$ graph | $(s)$ Speed must increase |
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