A car tavels from point A to B. With the speed of 50 km/h and returned to A with speed of 50 km/ h . Find displacement and average speed of car
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average speed =total distance /timelet the distance travelled from A to B= x kmthen,total distance travelled = 2x kmtime while going from A to B = D/S =x/30 hourstime while returning = x/50 hourstotal time = x/30 + x/50 =5x+ 3x 150 =8x/150 =4x/75 hoursaverage speed = 2x x 75 4x 37.5 km/hr
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