Question

find the force of attention of boday mass 80 kg standing on the surface of the earth
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Answer 1

Answer

• Force of attraction of body of mass 80 kg standing on Earth's surface = 784 N

Explanation

Given:-

• Mass of body at Earth's surface, m = 80 kg

To find:-

• The force of attraction Earth will exert on the body =?

Knowledge required:-

In this problem, we need to calculate the weight of the body on the Earth's surface.

• Weight is known as the force acting on the body due to gravity.
• W = m g

[ Where W is the weight of the body, m is mass of the body, g is the acceleration due to gravity ]

Solution:-

Let us calculate the weight of the body of mass 80 kg on Earth's surface.

[Taking the value of acceleration due to gravity (g) on earth as, g = 9.8 m/s²]

Using formula

→ W = m g

→ W = 80 × 9.8

→ W = 784 N

Here, Weight is equivalent to the force of attraction of body

therefore,

• Body of mass 80 kg is attracted towards the Earth with a force of magnitude 784 Newton.

Answer 2

Answer:

Given :-

• A body of mass 80 kg standing on the surface of the earth.

To Find :-

• What is the force attention of body of mass.

Formula Used :-

By using weight formula we know that,

$\boxed{\bold{\huge{\mathtt{w\: =\: mg}}}}$

where,

• w = weight
• m = mass
• g = gravity (we know that g = 9.8 m/s²)

Solution :-

Given :

• m = 80 kg
• g = 9.8 m/s²

According to the question by using the formula we get,

⇒ w = 80 × 9.8

➠ w = 784 N

$\therefore$ The force attention of body of mass is 784 N .