The S.I. unit of force is
Newton
Newton per second
Newton per square metre
Newton-metre
F = ma
1 Newton = 1 kg x 1 m/s2
Newton per metre square is also called
The atmospheric pressure is usually measured in the unit of : (a) newtons per square metre (b) Pascal (c) cm of mercury (d) mm of mercury
In a region where intensity of electric field is 5NC−1 , 40 lines of electric force are crossing per square metre. The number of lines crossing per square metre where intensity of electric field is 10NC−1 will be :