Question

A body covers 2/3rd of its journey with a speed of 20m/s and remaining one 3rd of its journey with a speed 10m/s. Calculate the average speed.​

Answer 1

Answer:

Let the total distance be 2x.

For first half distance :

Speed is 20 m/s

Thus time taken t

1

=

20

x

For second half distance :

Speed is 30 m/s

Thus time taken t

2

=

30

x

Average velocity V

avg

=

t

1

+t

2

2x

⟹ V

avg

=

20

x

+

30

x

2x

=

20+30

2×20×30

=24 m/s

Answer 2

Answer:

4 is a box of the following is not in favour of the conservation of nature and is a good idea to have the most hidden and important aspects to make sure that you have the most appropriate information on your day with your ground and the other day the best and