Question

an object travels 16m in 45 and another 16m is 25 what is the average speed of object​

Answer 1

Answer:

$\huge\bold\red{ANSWER}$

===>> In case of determining average speed ( in terms of Physics ) , it is given by total distance travelled by the moving object divided by total time taken to travel the total distance ( as Speed = Distance ÷ Time )

Now in the above case :-

==>> Total Distance Covered = 16 + 16 = 32 m

==>> Total Time Taken to Travel 32m = 4 + 2 = 6 s

Thus The Average Speed of the Moving Object = 32 ÷ 6 = 5.33 m/s

This is different from the Mathematical Average of Speeds

==>> Speed of the object in first case = 16 ÷4 = 4 m / s

==>> Speed of the object in second case = 16 ÷ 2 = 8 m / s .

➢ Mathematical Average of Speeds = ( 4 + 8 ) ÷ 2 = 12 / 2 = 6 m / s .

Now if you are said to determine AVERAGE OF SPEEDS , then you have to calculate the Mathematical Average .

➢ But if you are told to determine the Average Speed ( as told to you in this problem ) of the moving object , you have to apply the formula of Average Speed as Total Distance Travelled by the Moving Object divided by the Total Time Taken to Travel The Total Distance .

==>> Your answer in this case will be 5. 33 m/:s and not 6 m / s .