Question

b) A dog runs 100 m in 20 seconds. He then comes back half the distance in 10
seconds and stops. What is the dog's average velocity?
nt force of 6 N starts acting it Find​

Answer 1

Given :-

Displacement = 50 m

Time taken = 20 sec

To Find :-

The dog's average velocity.

Analysis :-

Here, we're given with displacement and time.

Then substitute those values in their respective formula and find the average velocity accordingly.

Solution :-

We know that,

• v = Velocity
• s = Displacement
• t = Time

Using the formula,

$\underline{\boxed{\sf Average \ velocity= \dfrac{Total \ displacement}{Total \ time} }}$

Given that,

Displacement (s) = 50 m (Since it returns half way)

Time taken (t) = 10 sec

Substituting their values,

v = 50/10

v = 5 m/s

Therefore, the average velocity of the dog is 5 m/s.