Question

A body of mass 10kg is attracted by the earth with a force which
is equal to
(a) 10 N
(b) 98 N
(c) 9.8 N
(d) None​

Answer 1

Given:

Mass of body on earth = 10 Kg

To find:

Weight of body or force with which it is attracted by eath's pull=?

Solution:

The force can be found in the following steps:

=> The force is called the weight of the body when it is pulled by the earth's gravity.

=> It can be calculated using the given formula.

=> Force by which body is attracted by earth = mass (M) × gravitational pull of the earth (g)

(g= 9.8 m/s²)

=> Force by which body is attracted by earth = 10 Kg × 9.8 m/s²

=> Force by which body is attracted by earth = 98 Kg m/s²

=> Force by which body is attracted by earth = 98 Newton

Hence, the weight or the force by which the body is attracted by the earth is 98 N (option c).

Answer 2

Answer:

B) A body of mass 10kg is attracted by the earth with a force which is equal to 98 N.

Explanation:

• A push or a pull on an object is referred to as force. An object can move due to force.
• It is used to add to an item when it is applied in the same direction.

Given: Mass of body = 10 kg

g= 9.8 m/s²

Find the force of the body.

Formula: Force by which body is attracted by earth = mass (M) × gravitational pull of the earth (g)

Force by which body is attracted by earth = 10 Kg × 9.8 m/s²

Force by which body is attracted by earth = 98 Kg m/s²

Force by which body is attracted by earth = 98 Newton

So, option (b) is the correct answer.