Question

if a particle covers 10m in 2s , then the average speed of the particle is
(1) 36km/h
(2) 18 km/h
(3) 72km/h
(4) 5 km/h ​

Answer 1

Answer:

Your answer is option 2

hope my answer helps you........

Answer 2

Given:

Distance=10m

Time=2 seconds

To find:
The average speed of the particle

Solution:

The particle's required speed is 18 km/h. (Option 2)

We know that the required speed can be obtained by dividing the distance by the time taken by the particle.

So, the average speed=distance covered by the particle/ time taken by the particle

Using the values, we get

=10/2

=5 m/s

Now, we have to convert it into km/h and so we will multiply the speed obtained by 18/5.

The required average speed=5×18/5

=18 km/h

Therefore, the particle's required speed is 18 km/h.