Question

What is the approximate weight of a 20-kg cannonball on earth?

a. 2 n
b. 20 n
c. 200 n
d. 2000 n?

Answer 1

Answer: The weight of the cannonball on Earth is 200 N

Step-by-step explanation:

Weight is defined as the force exerted by the body on any surface. It is also defined as the product of mass of the body multiplied by the acceleration due to gravity.

Mathematically,

`W=mg`

where,

W = weight of the cannonball

m = mass of the cannonball = 20 kg

g = acceleration due to gravity on Earth =
`10m/s^2`

Putting values in above equation, we get:

`W=20kg* 10m/s^2=200N`

Hence, the weight of the cannonball on Earth is 200 N

Answer 2

Weight = (mass) x (acceleration of local gravity)

= (20 kg) x (9.81 m/s²)

= 196.2 Newtons

(about 44.09 pounds)