horizonwill horizonwill

24-01-2018
Physics

contestada

a bus accelerates at -0.5 m/s^2 for 12.5 seconds if the bus had an initial speed of 31 /s what is its new speed

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prosborough198p2ub41 prosborough198p2ub41

24-01-2018

vf=v0+at so 31m/s-.5m/s^2*12.5= 24.75m/s is the new speed. the negative sign is showing a deceleration.

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