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A body is in motion along a strainght li...

A body is in motion along a strainght line. As it crosses a fixed point a stop watch is started . The body travels a distance of ` 1.80 m` . In the first 3 second and 2.20 m in next 5 seconds. What will be the velocity at the end of 9 second ?

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Didtance travelled in ( t+ 3) sec =1 . 8 ,
Distance traavelled in ( t+ 3+ 5) sec
` = 1.8 + 2.2 = 4.0 m`.
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