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A grapefruit has a weight on earth of 4.9 newtons. What is the grapefruit's mass?

Respuesta :

weight = mg where m = mass and g = gravity = 10 (9.81....)
so m = w/g = 4.9 / 10(9.81....) = 0.49 (0.49949....)
if you get given g as 10, answer is 0.49 kg 
if you get given g as 9.81, answer is 0.50 (1sf)

Answer:

The grapefruit's mass is 0.5 kg.

Explanation:

Given that,

Weight = 4.9 N

We need to calculate the mass

Using formula of newton's second law

[tex]F = mg[/tex]

[tex]m = \dfrac{F}{g}[/tex]

Where, F = weight on earth

g = acceleration due to gravity

Put the value into the formula

[tex]m = \dfrac{4.9}{9.8}[/tex]

[tex]m =0.5\ kg[/tex]

Hence, The grapefruit's mass is 0.5 kg.