Problema Solution
On a given planet, the weight of an object varies directly with the mass of an object. Suppose that an object whose mass is 8 kg weighs 40N. Calculate the mass of another object that weighs 35N
Answer provided by our tutors
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W = the weight on the object
m = the mass of the object
the weight of an object varies directly with the mass of the object
W = k*m, where k is constant
k = W/m
For m = 8 kg, W = 40 N we have k = 40/8 = 5.
If W = 35 N we need to find m:
35 = 5*m
5*m = 35 divide both sides by 5
m = 7 kg
The mass of the object is 7 kg.