Question

To find the average speed of am individual, as one walks/runs To and fro between two points​

Answer 1

Answer :Time = Distance / speed = 1800/40 = 45 hours. Thus we can find the average speed as: Average Speed = (Total distance)/(Total Time) = (1800 + 1800)/(30 + 45) = 3600/75 = 48 km/hr. Hence the correct option here is C) 48 km/hr.

Answer 2

QUESTION:-

To find the average speed of an individual, as one walks/runs To and fro between two points

ANSWER:-

• When an individual walks/runs to and fro between two points with a speed (s) relative to air. If the velocity of walk/run is u, the average speed of the man (for to and motion) is the square of speed subtracting the square of the velocity and dividing it by the speed.

• $\frac{ {s}^{2} - {u}^{2} }{s}$

EXPLANATION:-

• The vastly used formula for average speed is distance journeyed divided by the time taken to travel. The other formula is when you have the initial and final speed then you can sum up the two together, and divide by 2.

• Average speed is equivalent to the total distance travelled divided by the total time taken to travel.

• The to and fro motion of an object means the movement of an object forward and backwards in an equilibrium position.

• The to and fro motion is mainly known as oscillatory motion. In oscillatory motion, the object moves to and fro within a fixed point which exists within a fixed time. The object retrievals to its initial position within the fixed time.

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