A car travels along a straight line for first half with a speed of 40km/ hr and second half of 60km/ hr. Find its average speed
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Answered by
8
let the total distance be 2x
ist half :-
time travelled = x/40
2nd half :-
time travelled = x/60
average speed
=(2x)/(x/40 + x/60)
= 2 x 120 / 5
=48
ist half :-
time travelled = x/40
2nd half :-
time travelled = x/60
average speed
=(2x)/(x/40 + x/60)
= 2 x 120 / 5
=48
Answered by
1
Average speed = (2×V1×V2)/V1+V2. ....eq( 1)
As V1 = 40km/h and V2 = 60Km/h
on putting value of V 1 and V2 in eq( 1 )
average speed = 48 km/h
As V1 = 40km/h and V2 = 60Km/h
on putting value of V 1 and V2 in eq( 1 )
average speed = 48 km/h
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