George walks to a friends house.he walks 750 meters north,then realizes he walked too far.he turns around amd walks 250 meters south.the entire walk takes him 13 sec. What is his speed per sec
Answers
Answer:the answer is 69.2
Explanation:
as thy asked for the speed,the distance will be 1000
and the time is 13 seconds
the speed is equal to 1000/13
that is 69.2
Given,
George walks 750 metres and then 250 metres.
Total time taken = 13 seconds.
To find,
George's speed per second.
Solution,
George's speed per second will be 76.92 metres per second (m/s).
We can easily solve this problem by following the given steps.
Now,
The total distance covered by George in 13 seconds (d) = 750 metres + 250 metres
d = 1000 metres
We know that speed is defined as the total distance covered by an object in a given time interval.
Speed = distance/time
Speed = 1000/13
Speed = 76.92 m/s
( Note that speed is always written with the units according to the units of distance and time. For example, here, if the distance would have been in kilometres and time, would have been in hours then the unit of speed would have been km/hr.)
Hence, George's speed per second is 76.92 m/s.