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6. A car travels along a straight line for first half time with aspeed of 40 km h and the second half time with a speedof 60 km h-! Find the average speed of the car.Find (a) thobject int14. The veloA motorAns. 50 km h-17 |
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Answer» Answer: 50 km/h Explanation: let TOTAL time taken be 2T ( in hours) during journey. speed of car in first half time= distance × time = 40t speed of the car in SECOND half time = distance × time = 60T Average speed = total distance/ total time = (40t +60t)/2t= 50 km/h Hope it will HELP you...... |
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