the gravitational field strength at the earth's surface is 10n/kg. calculate the wight of the following:
A. a person of mass 80kg
B. a 2kg bag of sugar
C. a 125kg pack of tea
Multiply each mass (in kg) by 10 N/kg.
A more correct multiplier would have been 9.8 N/kg
To calculate the weight of an object, you can use the formula:
Weight = Mass × Gravitational Field Strength
Given that the gravitational field strength at Earth's surface is 10 N/kg, we can now calculate the weight of each object:
A. Weight of a person of mass 80 kg:
Weight = Mass × Gravitational Field Strength
Weight = 80 kg × 10 N/kg
Weight = 800 N
Therefore, the weight of a person of mass 80 kg is 800 Newtons.
B. Weight of a 2 kg bag of sugar:
Weight = Mass × Gravitational Field Strength
Weight = 2 kg × 10 N/kg
Weight = 20 N
Therefore, the weight of a 2 kg bag of sugar is 20 Newtons.
C. Weight of a 125 kg pack of tea:
Weight = Mass × Gravitational Field Strength
Weight = 125 kg × 10 N/kg
Weight = 1250 N
Therefore, the weight of a 125 kg pack of tea is 1250 Newtons.