Question

A car moving with 40 kilometre per hour while going from Bongaigaon to Guwahati and returned back

to Bongaigaon with speed of 50 kilometre per hour. Find the average speed of the car.​

Answer 1

Explanation:

Correct answer is 8Km

v

2

−u

2

=2as

Substituting v=0,u=40 km/hr,s=2 km

0−40

2

=2×a×2

a=−400km/h

2

For u=80 km/h,

0−80

2

=2×(−400)×s

s=

800

6400

=8 km

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