physics class9 ncert ch motion exercises back ques no 8
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a) distance ?
area under speed - time graph gives area . so,
area = 4 × 6 = 24
therefore the car travels 24 units in the first four seconds
b) the car travels in uniform motion from 6 seconds to 10 seconds (because the line is straight and parallel to the time axis)
area under speed - time graph gives area . so,
area = 4 × 6 = 24
therefore the car travels 24 units in the first four seconds
b) the car travels in uniform motion from 6 seconds to 10 seconds (because the line is straight and parallel to the time axis)
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