GENERAL KNOWLEDGE

GK

UNITS DEVICES DIMENSIONS AND MEASUREMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The SI unit of “force” is
A
Kg
B
Joule
C
Newton
D
Dyne
Explanation: 

Detailed explanation-1: -The newton (symbol: N) is the unit of force in the International System of Units (SI). It is defined as 1 kg⋅m/s2, the force which gives a mass of 1 kilogram an acceleration of 1 metre per second per second.

Detailed explanation-2: -The formula of force (f) acting on an object with mass (m) and acceleration (a) is F = m a . The SI unit of force is newton (N), where 1 newton is equal to 1 k g × 1 m / s 2 .

Detailed explanation-3: -Therefore, the SI unit of weight can be measured in kg⋅m/s2 (kilograms times metres per second squared) which is equal to a newton (N). Since weight is the force extended by the gravitational force on a mass it is represented by the formula W = m*g, where weight can be kg * m/s2 which is equal to N.

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