Question

The mass of a mouse is around 22 grams (0.022 kg). What is the weight of a mouse at sea level on Earth?

Answer 1

The correct answer would be 0.22 N.

Hope this helps.

Answer 2

Answer: last option, 0.22 N

Explanation:

Weight is the attractive force that the Earth exerts on the objects, and it is calculated as the product of the mass of the object and the gravitational acceleration: w = mg.

Gravitational acceleration depends of the height of the objects but it is almost a constant at the normal altitudes (near the surface) with which this kind of problems deal with. Of course, this is true at sea level on Earth.

A standard value used for g is 9.81 m/s^2. And for quick or approximate calculations it can be used 10 m/s^2.

So, to calculate what is the weight of a mouse at sea level on Earth, when you have that the mass of a mouse is around 22 grams (0.022kg), you  folow these steps:

1) Data:

• m = 0.022 kg

• g = 10 m/s^2

• w = ?

2) Formula: w = mg

3) Solution: w = 0.022 kg (10 m/s^2) = 0.22 N.

So, the answer is the last option: 0.22N.