Question

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Updated on : 2022-09-05

Solution

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Distance = Speed x Time

1)When it's average speed is 20 km/hr

$x=v_{1}×t_{1}=20×t_{1}$

2)When it's average speed is 30 km/hr

$x=v_{2}×t_{2}=30×t_{2}$

$V_{average}=totaltimetakentotaldistancetravelled $

$V_{average}=v_{1}x +v_{2}x x+x =20x +30x 2x =24kmh_{−1}$

Video Explanation

Solve any question of Motion in a Straight Line with:-

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