Question

find the weight of a stone on the surface of the earth if its mass is 20 kg.

Answer 1

Answer:

200 N

Explanation:

Weight = force on a mass

force = mass*acceleration

acceleration due to earth's gravity = 10 m/s^2

so, weight = 20 * 10 = 200 N

Thus the weight is 200N

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Answer 2

Weight of a stone on the surface of the earth if its mass is 20 kg is 196N

Given

Mass of the stone = 20 kg

Stone is on the surface of the earth

To Find

Weight of the stone

Solution

The weight of any object is defined as the force exerted by the earth’s gravity on that object’s mass.

We know that Force (F) = Mass (m) x Acceleration (a)

Here mass is 20 kg and the acceleration is the gravitational force and on the surface of the earth it is 9.8 m/s^2

Therefore F = 20 * 9.8 = 196N

Hence, the weight of a stone on the surface of the earth if its mass is 20 kg is 196N