Question

The mass of the body on moon is 40kg , what is the weight on the earth ?

A. 240kg
B. 392N
C. 240N
D. 400kg

Answer 1

Answer:

392 N

Explanation:

Given The mass of the body on moon is 40 kg , what is the weight on the earth ?

Now we have mass of body on moon m = 40 kg.

We know that weight on earth is given by mass x gravitational force

 So w = m x g

       w = 40 x 9.8 m/s^2

      w = 392 N

So weight on the earth is 392 N

Answer 2

answer : option (B) 392N

explanation :

• Mass doesn't change in any situations. it always remains constant.

so, mass of body on the moon = mass of body on the earth = 40kg

we know,

weight of body on the earth's surface = mass of body × acceleration due to gravity on earth's surface.

= 40kg × 9.8 m/s² [acceleration due to gravity on the earth's surface is 9.8m/s²]

= 392N

hence, weight of body on the earth's surface is 392N