How do I calculate the force of gravity on a 1-kg mass at Earth's surface?

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To calculate the force of gravity on a 1-kg mass at Earth's surface, use the formula F=G m1m2/d², where G is the universal gravitational constant (6.67300 × 10^-11 m^3 kg^-1 s^-2), m1 is the mass of Earth (6.0 x 10^24 kg), and d is the radius of Earth (6.4 x 10^6 m). The discussion highlights confusion around how to apply the gravitational constant and whether to solve the equation in its entirety or plug in values directly. Participants clarify that all necessary values are available for calculation. Ultimately, the task is to input these numbers into the formula to find the gravitational force.
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1. Calculate the force of gravity on a 1-kg mass at Earth's surface. The mass of Earth is 6.0 x 10^24 kg, and its radius is 6.4 x 10^6 m.



2. F=G m1m2/d²



3. I am confused on how to solve this problem. I know the mass of Earth and its radius (the numbers needed to plug into the equation) but I am confused as I need to solve for the Universal Gravitational Contant as well? I am just confused with the different numbers and figures involved with this problem and would appreciate help if possible...thanks!
 
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gravitational constant = 6.67300 × 10^-11 m^3 kg^-1 s^-2
 
How do I use the Gravitational Constant to solve this problem? For some reason it is confusing me very much...do I solve the problem in entire equational form or do I actually solve for the equations?
 
All you need to do is plug the numbers into the formula (Newton's law of gravity) and use your calculator.
 
K. This also includes the known for G (universal gravitational constant) correct? THx again...just confused on this for some reason
 
LoveKnowledge said:
K. This also includes the known for G (universal gravitational constant) correct?
Sure. The formula includes the constant G, m1, m2, and d (which is the radius of the earth). You have all those values. Time to calculate!
 

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