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3 years ago

What is the weight of a 48 kg girl on Earth? Rounded to the nearest whole number

Physics

2 answers:

Levart [38]3 years ago

6 0

Answer:

471 N

Explanation:

Weight is just another word for the force of gravity.

Weight is a force that acts at all times on all objects near Earth. The Earth pulls on all objects with a force of gravity downward toward the center of the Earth (g-9.81 m/s2)

so we can simply say

weight =mass * gravitaitonal acceleraition

= 48 * 9.81

=470.88 N

= 471 N

QveST [7]3 years ago

4 0

Answer:

470N

Explanation:

EDGE

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Explanation:

This question involves continuous displacement in various directions. When it becomes difficult to imagine, vector analysis becomes handy.

Let us denote each of the individual displacements by a vector. Consider the unit vectors $\vec{i}\textrm{ and }\vec{j}$ as the unit vectors in the direction of East and North respectively.

By simple calculations, we can derive the unit vectors $\vec{j},\frac{-\vec{i}-\vec{j}}{2}\textrm{ and }\frac{-\frac{1}{2}\vec{i}+\frac{\sqrt{3}}{2}\vec{j}}{2}$ in the directions North, $45^{o}$ South of West and $60^{o}$ North of West respectively.

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