Physics, 30.07.2021 16:40 Thickmadam57821

A biker travelling on a straight road passes a traffic signal with a velocity of 6 m/s and accelerates uniformly for 3 seconds. Then he accelerates at triple the rate for 3 more seconds
and passes the second traffic signal with a velocity of 42 m/s. Find his speed 2 seconds after he
passes the first traffic signal

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