NALYZE B) Acceleration for a straight line velocity-time plot with downward slop

Question

NALYZE B) Acceleration for a straight line velocity-time plot with downward slope or the straight line velocity vs. time plot that has a downward slope of -1.6 m/s2, the velocity changes by 1.6 m/s for each second that passes. This is a constant negative-B acceleration. FINALIZE Choose the appropriate plot in the Active Figure. ANALYZE (C) Acceleration with a slope of +1.6 m/s each second until t = 5 s, and thereafter constant In this case the velocity gains +1.6 m/s for each second that passes until the total velocity increase is 1.6 x m/s. Thereafter, the velocity is constant, so that the acceleration is o m/s2 FINALIZE Choose the appropriate plot in the Active Figure Need Help? Talk to a Tutor

Explanation / Answer

B. for straight line velocity vs time plot, downward slope of -1.6 m/s/s

velocity changes by -1.6 m/s for every second that passes

this is a contant -ve acceleration

C. a = 1.6 m/s/s

t = 5 s

so v = at = 1.6*5 = 8 m/s

hence the velocity changes by 1.6 m/s till it reaches 8 m/s

thereafter the v is constant so a = 0

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