How would I do these questions and round them to the nearest significant figure? I am having trouble with the multiplication rule of sig figs. Worksheet: Weight = mass X gravityWeight is a measure of the gravitational force between the object and the Earth. Theacceleration of gravity on Earth is 9.8 m/sec?. Weight is measured in units of Newtons. If oneobject has more mass than another then it weighs ( more / less ) than the other object.As an astronaut goes to the moon, his mass remains the same but hisweight decreases. This is because as he got further away from the Earth, the acceleration ofgravity decreases.Part 1: Weight Problems – acceleration and gravity are the same thing so F=ma is thesame as F=mg.1. Force (F) = ?Mass (m) = 75 kgGravity (g) = 9.8 m/s/s2. Force (F) = 490NMass (m) = ?Gravity (g) = 9.8 m/s/sFormula: F = mgFormula: m = F/gSubstitution: F = (75 kg)(9.8 m/s?)Substitution: m = 490 N/9.8 m/s²Answer:Answer:3. What is the force on a 1 kg ball that is falling freely due to the pull of gravity?Force (F) = ?Formula: F = mgMass (m) = 1 kgSubstitution: F = (1 kg)(9.8 m/s?)Gravity (g) = 9.8 m/s² (assumed on Earth)Answer: ?4. What is the mass of a person who weighs 500 N?Force (F) = 500 NFormula: m = F/gMass (m) = ?Substitution: m = 500 N/9.8 m/s?Gravity (g) = 9.8 m/s²Answer: ?5. What is the weight of an object (on earth) that has a mass of 45 kg?Force (F) = ?Formula: F = mgMass (m) = 45 kgSubstitution: F = (45 kg)(9.8 m/s?)Gravity (g) = 9.8 m/s²6. The value of gravitational pull on the moon is 1.6 m/s/s. What is the weight of a 75 kgAnswer: ?astronaut on the moon? 7. A space ship has a mass of 9000 kg. The space ship is launched from Earth and lands on adistant planet where it has a weight of 390000 N. What is the acceleration of gravity on thisplanet?Force (F) = 390000 NFormula: g = F/mMass (m) = 9000 kgSubstitution: g= 390000 N/9000 kgGravity (g) = ?Answer: ?8. Big Bertha tips the scales at 950 Newtons. What is her mass?Force (F) = 950 NFormula: m = F/gMass (m) = ?Substitution: m= 950 N/9.8 m/s?Gravity (g) = 9.8 m/s²Answer: ?9. If my mass is 100 kilograms, what is my weight?Force (F) = ?Formula: F = mgMass (m) = 100 kgSubstitution: F = (100 kg)(9.8 m/s?)||Gravity (g) = 9.8 m/s²Answer: ?10. The elevator in the new office building warns that it can safely lift 300 kg at one time. If John(850 N), Betty (530 N), Robert (740 N) and Alice (610 N) all get in the elevator at once, canthe elevator safely carry them up to the third floor? Think! Show all work.

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. Force (F) = ? Mass (m) = 75 kg Gravity (g) = 9.8 m/s/s 2. Force (F) = 490N Mass (m) = ? Gravity (g) = 9.8 m/s/s Formula: F = mg Formula: m = F/g