A man walk for one minute at a speed of 1 metre per second and then run for one minute at a speed of 3 metre per second along a straight track what is the average speed of the man
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total distance covered by the man
1 m/s for one minute = 1×60 = 60m
3 m/s for one minute = 3×60 = 180m
total distance = 60+180 m
= 240m
Average Speed = total distance/total time
Avg speed = 240/120
{ Total time = 2min = 120s}
avg speed = 2 m/s
1 m/s for one minute = 1×60 = 60m
3 m/s for one minute = 3×60 = 180m
total distance = 60+180 m
= 240m
Average Speed = total distance/total time
Avg speed = 240/120
{ Total time = 2min = 120s}
avg speed = 2 m/s
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