Question

an object travels 20 m in 5 sec and another 30 m in 3 sec .the average speed of the object is

Answer 1

Given:

Total distance traveled by the object (d)= 20+30 = 50m

Total time taken (t) =5+3 = 8sec

Average speed (S) =?

Solution:

To find the average speed of an object

Use the formula,

$Average speed = total distance traveled/total time taken$

S = d/t

S = 50m/8sec

S = 6.25m/s

Therefore, the average speed of an object is 6.25m/s.

Answer 2

Concept Introduction:

Average speed of object=Total distance travelled by the object ÷ Total time taken by the object.

Given:

Object travels $20$ m in $5$ sec and $30$ m in $3$ sec.

To Find:

We have to find the value of, average speed travelled by the object.

Solution:

According to the problem,

Average speed of object=Total distance travelled by the object ÷ Total time taken by the object.

∴ Average speed of object = ₍$20$₊$30$₎ m ÷₍$5$₊$3$₎s

=$50$ ÷ $8$ m/s

= $6.25$ m/s

Final Answer:

The value of Average speed of object is $6.25$ m/s

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