Question

a man walks at a speed of 7 m s-1 for 56m and 8m s-1 for next 56m . what is the average speed

Answer 1

Step-by-step explanation:

Man walks 1 minute i.e 60 seconds at speed of 1m/s and runs for 60seconds at speed of 3m/s

Given two speeds and their corresponding time taken say s1,t1 and s2,t2

then average speeed is given as

t1+t2

t1×s1+t2×s2