The velocity-time (v-t) graph for a moving ob | vedclass

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(B) The interval with non-zero acceleration and retardation is from $t = 20 \, s$ to $t = 40 \, s$.Displacement is equal to the area under the $v-t$ g

Vedclass · Accepted Answer

$50$

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(B) The interval with non-zero acceleration and retardation is from $t = 20 \, s$ to $t = 40 \, s$.Displacement is equal to the area under the $v-t$ graph.For the interval $t = 20 \, s$ to $t = 40 \, s$,the area consists of a rectangle of height $1 \, m/s$ and width $20 \, s$,plus a triangle of base $20 \, s$ and height $(4 - 1) = 3 \, m/s$.Area $= (20 	imes 1) + (\frac{1}{2} 	imes 20 	imes 3)$Area $= 20 + 30 = 50 \, m$.

The velocity-time $(v-t)$ graph for a moving object is shown in the figure. The total displacement of the object during the time interval when there is non-zero acceleration and retardation is ........ $m$.

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