Advertisements
Advertisements
प्रश्न
Express 15 m s-1 in km h-1.
Advertisements
उत्तर
1 metre = `1/1000` km
15 metre = `15/1000` km
1 second = `1/3600` hr
Here , Distance = `15/1000` km
Time taken = `1/3600` hr .
Speed = `"Distance"/ "Time taken" `
= `(15/1000)/(1/3600)`
= `15/1000 × 3600/1`
= 54 km `"h"^-1`
APPEARS IN
संबंधित प्रश्न
Select the correct alternative
One litre is equal to :
A piece of paper of dimensions 1.5 m × 20 cm has area ______.
Explain the meaning of the term speed.
A piece of brass of volume 30 cm3 has a mass of 252 g. Find the density of brass in (i) g cm-3, (ii) kg m-3.
Name the S.I. unit.
Write the temperature of melting ice.
State if the following statement is true or false:
There are seven base units in the SI system.
Answer the following in detail.
What do you understand by the term volume?
Solve the following numerical problem.
The body temperature of a patient on Monday was102 °F and on Tuesday it was 104°F. What was the rise in temperature during these two days?
Explain giving examples.
Scalar quantity
