Dear

A distance of one international mile or 1 760 international yards or exactly 1609.344 meters travelled in one hour or exactly 3 600 seconds. 1 Mile per hour = 1.60934 kilometers per hour = 0.44704 meters per second (SI base unit). 1 mph = 0.447 04 m/s.

Also,

1 Centimeter per second is equal to 0.01 meters per second (SI unit).

So, car travels 2235.2 cm per second.

5 0

3 years ago

4.5.

shutvik [7]

Answer

One unit of length on the plan represents some number of same units of length on the ground,such as 1/1000,etc.

This Ratio of map distance to the corresponding ground distance is independent of units of measurement and is called representative fraction (R.F.).

The representative fraction can be very easily found for a given engineer’s scale.

The scale of a map is given as= 1:4000

If the scale is,

R.F.= 1:4000

=1/4x 10x100

1cm=40m

Two places are 9 cm apart on the map.

the actual distance between two places

=4x 90

=360 m

=360/1000 Km

=0.36 Km

3 0

3 years ago