A body covers 20m in 2minutes calculate its speed in meter per second

1.	A body covers 20m in 2minutes calculate its speed in meter per second and km per hour
Answer» Given:- Distance covered , d = 20m Time taken , t = 2min To Find:- Speed (S) of BODY in m/s & km/h Solution:- Firstly we convert the UNIT here 1 min = 60s ∴ 2min = 2×60 = 120s Now we KNOW that , → Speed = Distance/time The speed of body in m/s → S = d/t Substitute the value we get → S = 20/2 → S = 10m/s ∴ The speed of body in m/s is 10m/s. Now speed of body is km/h Here we convert the unit 1km = 1000m ∴ 20m = 20/1000km = 0.02km And time 1hour = 60min ∴ 2 min = 2/60 = 1/30= 0.03 → Speed = distance/time → Speed = 0.02/0.03 → speed = 0.66km/h ∴ The speed of body in km/h is 0.66km/h.

A body covers 20m in 2minutes calculate its speed in meter per second and km per hour

Answer»

Given:-

Distance covered , d = 20m

Time taken , t = 2min

To Find:-

Speed (S) of BODY in m/s & km/h

Solution:-

Firstly we convert the UNIT here

1 min = 60s

∴ 2min = 2×60 = 120s

Now we KNOW that ,

→ Speed = Distance/time

The speed of body in m/s

→ S = d/t

Substitute the value we get

→ S = 20/2

→ S = 10m/s

∴ The speed of body in m/s is 10m/s.

Now speed of body is km/h

Here we convert the unit

1km = 1000m

∴ 20m = 20/1000km = 0.02km

And time

1hour = 60min

∴ 2 min = 2/60 = 1/30= 0.03

→ Speed = distance/time

→ Speed = 0.02/0.03

→ speed = 0.66km/h

∴ The speed of body in km/h is 0.66km/h.

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