Question

a car travels a distance of 200 km in 3hrs. find the speed of car in m/s​

Answer 1

Answer:

If a car travels 200km in 3 hours, what is its speed in km/h?

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Good question, this is a tricky one.

If a car travels 200 km in 3 hours, what is the speed in km per hour.

First we need to check units:

Distance traveled is in km, the speed calculation is requesting km per hour. This appears to be consistent.

Time of travel is in hours, the speed calculation is in hours. This also appears to be consistent.

The time of travel is 3 hours, in order to calculate the velocity in km per hour we need to figure out how far the vehicle traveled in one hour.

So, how many times will 1 hour go into 3 hours?

3 divided by 1: 3/1 = 3

We now need to divide the total distance traveled by 3:

(200 km)/3 = 66.666… km

Next, take the distance traveled in 1 hour and divide it by 1 hour:

(66.666… km)/(1 hr) = 66.666 km/hr

So the answer is 66.666… km/hr

At this point, if you can execute the steps outlined you should not have any more difficulties dealing with any mathematical processes or procedures.

Answer 2

Given-

• Distance Covered= 200km
• Time Taken = 2 hrs.

Find-

Speed in m/s

Formula to be used-

$\boxed{ \bf{ \bigstar Speed =\dfrac{Distance}{Time }\bigstar }}$

SoLution-

At first Convert distance km to m and time hrs to sec

we know,Distance

$\sf {1km= 1000m }$

$\sf{\implies 1\times 200 km = 1000 \times 200m = 200000m}$

also,Time

$\sf{1hr= 3600 sec }$

$\sf{\implies 1\times 3 hrs = 3600 \times 3 \ sec = 10800sec}$

Now Put the value in the formula

$\sf{speed = \dfrac{distance}{time}}$

$\sf{\implies Speed = \dfrac{200000m}{10800s} = 18.51 m/s}$

$\bf{\pink{\underline{\therefore Speed \ of \ car \ is \ 18.51 m/s.}}}$