7 Calculate the weight of an apple of mass 100 grams a on the Earth (g = 10 N/kg)
b on the Moon (g = 1.6 N/kg).

See the anwers below

Explanation:

To solve this problem we must understand that the weight of anybody is defined as the product of mass by gravitational acceleration. Gravitational acceleration depends on the place in space where a certain body is located.

where:

W = weight [N]

m = mass = 100 [g] = 0.1 [kg]

g = gravity acceleration [m/s²] or [N/kg]

Now for the Earth

For the Moon

a straight line sloped

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y