Question

a body travels 20 metre in 5 second 25 metre in next 7 second and 65 metre in last 3 second find its average speed of the body​

Answer 1

Answer:

20+25+65/5+7+3

=110/15

=7.333 m/s

Answer 2

Answer:

7.33 m/s

Explanation:

Given :

• The body travels a distance of 20 metres in 5 seconds

• The body travels a distance of 25 metres in 7 seconds

• The body travels a distance of 65 metres in the last 3 seconds

To find :

• Average speed of the body

Average speed = total distance / total time

Total distance = 20+25+65

Total distance = 45+65

Total distance = 110 metres

Total time = 5+7+3

Total time = 5+10

Total time = 15 seconds

Average speed = 110/15

Average speed = 7.33 m/s

The average speed of the body is equal to 7.33 m/s