Weight is not anything but the force gravity experiences. It is represented by W and Newton is its SI unit. It is articulated as the product of mass and acceleration due to gravity. So the weight of a given object will show variation according to the gravity in that particular space. So, objects with similar mass appear in different weights across different planets.
Formula of Weight
The formula for weight is articulated as,
W=mg
Where,
- Weight of the object is W
- Mass of the object is m
- Acceleration due to gravity is g
Solved Examples
Numerical associated to weight calculations are provided underneath:
Problem 1: Compute the weight of a body on the moon if the mass is 60Kg? g is given as 1.625 m/s2.
Answer:
It is known that,
m = 60 kg and
g = 1.625 m/s2
Formula for weight is,
W = mg
W = 60×1.625
W = 97.5 N
Problem 2: Compute the weight of a body on earth whose mass is 25 kg?
Answer:
It is known that,
m = 25 kg and
g = 9.8 m/s2
Formula for weight is,
W = mg
W = 25×9.8
W = 245 N