Figure below shows the displacement-time curve of the particles A and B. Which of the following statements is correct?
A
bothA and B move with uniform equal speed
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B
A is accelerated and B is retarded
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C
both A and B move with uniform speeds but the speed of A is more than the speed of B
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D
both A and B move with uniform speeds but the speed of B is more than the speed of A.
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Solution
The correct option is C both A and B move with uniform speeds but the speed of A is more than the speed of B Slope of s-t graph gives velocity of a body.
Slope in both case is constant so both moves with constant velocity but slope of A is more, so velocity of A is more . Magnitude is also more for A as compare B, so speed of A is more.