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Motion In A Straight Line
Dear Student, Slope of velocity time graph indicate acceleration of the body .
1- Because slope is constant for straight line hence acceleration of the body is constant and negative. 2- Because velocity decreases with time hence acceleration and velocity will be in opposite direction because velocity is positive hence acceleration is towards negative and never changes its direction.
3- So due to opposite acceleration body will stop after some time (t= 10s) and then i will move in the direction of acceleration.
Regards.