The fundamental concept of Speed, time, and distance involves the relationship between three variables. The speed of a body is defined as the distance covered by the body per unit of time.
Therefore, Speed = Distance / Time
Speed – Speed refers to the rate at which a specific distance is covered by an object being in motion.
Time – Time is defined as an interval distinguishing between two events.
Distance – Distance is known as the extent of space between two points.
Each of the Speed, time, and distance can be represented with their respective units.
Speed – Speed is commonly denoted as Km/hr and M/s.
Time – Time is generally expressed in seconds (s), hours (hrs) as well as minutes (min).
Distance – Distance is expressed in meters (m) and kilometers (km).
To calculate Speed, Distance, and Time, you are required to know two out of three variables. Further, variables need to be converted into similar units. For instance, if you have speed into Km/hr (Kilometer per hour), you need to do conversion of time into hours too.
Following is the formula used to perform the calculation of Speed, Distance as well as Time :
Distance = Speed x Time
Average speed is known to measure the average rate of speed.
Average speed is also known as Average velocity in physics and engineering. The formula for calculating Average Speed is given below :
v = d/t
Here, v is denoted as Average speed, d is used for Distance, and t means Time.
How to calculate Distance?
Distance is defined as the length of the space between two points.
Following is the method is given to calculate Distance :
d = v x t
Here, d means Distance, v refers to Speed whereas t denotes Time.
Time is defined as the interval separating two distinctive events.
Given below is the formula to calculate Time :
t = d/v
Here, t is known as Time, d is denoted as Distance, and v is referred to as Speed.
Following are some practice questions along with their solutions to get more clarity over the concept :
Speed = Distance /Time
= 600/ 5 x 60 m/s
= 2 m/s
Let’s convert m/s into Km/hr :
= 2 x 18/5 Km/hr
= 7.2 Km/hr
Because of stoppages, the bus covers 9 Km less.
Therefore, Time taken to cover 9 Km = 9/54 x 60 mins = 10 mins
Let the actual distance traveled by Neha be x Km.
Then, x/10 = x+20/14
14x = 10x + 200
4x = 200
x = 50
Actual distance = 50Km
Let the speeds of two trains be 7x and 8x Km/hr respectively.
Then, 8x = 400/4 = 100
x = 100/ 8 = 12.5
Speed of first train = 7 x 12.5 Km/hr = 87.5 Km/hr
1/2x / 21 + 1/2x / 24 = 10
x/21 + x/24 = 20
15x = 168 x 20
x = 224 Km
What is the distance from Earth to the Moon?
The average distance to the moon is known to be 384,403 kilometers. The word Average has been used here due to one fact that says the Moon orbits around the Earth in an elliptical pattern. This means that at certain times, it will be farther away, and at certain times, it will be closer.
At its closest point, the moon is only 363,104 kilometers away. And in its distant time, the Moon gets to a distance of 406,696 kilometers.
After going through the complete article, it is pretty clear that the basics of time, speed, and distance are really important. Conclusively, the basic concept of Speed, Time, and Distance involves the relation between three variables. The Universal formula for calculating Speed, Time, and Distance are: Distance = Speed x Time
Every variable has its particular unit.
Note: The main thing to be kept in mind while solving Speed, Time, and Distance practice questions is that the unit of every variable must be similar.
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