Physics, asked by shreyajaiswal0601, 5 hours ago

A car moves through 20 km with a speed of 40 km per hour and next 20 km with a speed of 60 km per hour calculate its average speed ​

Answers

Answered by yugamsinha
3

Answer:

48 km/hr

Explanation:

distance 1= 20km

speed 1= 40km/hr

distance 2= 20km

speed 2= 60km/hr

time 1= 20/40= 1/2

time 2= 20/60= 1/3

avg speed= 20+20/1/2+1/3

=20+20/5/6= 40/5/6

40*6/5= 48km/hr

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