A car travels first 40 kilometre with a uniform speed of 60 km/h and then next 40 kilometre with a uniform speed of 40 km/h. Calculate a) the total time of journey b) the average speed of the car
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Answer:
average speed of car =total distance coverd÷rotal time taken =80km/h÷100
Explanation:
it is so as in uniform motion a object covers equal distance in equal interval of time and speed remains constant
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