Question

The car has moved through a distance of 20m in 5 sec. What is the speed of the car?
a. 2 m/s
b. 4 m/s
c. 6 m/s
4. 8 m/s​

Answer 1

Answer:

B. 4 M/S

Explanation:

20 DIVIDED BY 5 = 4

Answer 2

➣ Answer

• Speed of the car = 4m/s ( option b ).

➣ Given

• The car has moved through a distance of 20m in 5 sec.

➣ To Find

• The speed of the car.

➣ Formula Used

$\bigstar \underline{\boxed{ \tt{\color{purple}{Speed =\cfrac{Distance}{Time}}}}}$

➣ Step By Step Explanation

In this question we already know the distance = 20 m and time = 5 sec. We need to calculate speed. We can substitute the values in the above formula to find speed.

[ Note :- Speed will be in m/s because distance is in meter and time is in seconds ]

So let's do it !!

➵ By substituting the values

$\longmapsto \tt \: Speed = \cancel\cfrac{20}{5} \\ \\ \longmapsto \sf \green{Speed = 4m/s }$

Therefore, speed of the car = 4m/s.

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➣ More to Know

➵ Speed is the distance covered by an object in per unit time. Speed is a scalar quantity. SI unit of speed = m/s.

But for calculating speed in daily life we often use Km/h.

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