If an object has a mass of 20 kg on a planet with a force of gravity of 4 m/s2. What is the object's weight?
**Remember** W=mg
a
0.2 N
b
5 N
c
80 N
d
200 N
The correct answer is (b) 5 N.
To calculate weight, we use the formula W=mg, where W is weight, m is mass, and g is the force of gravity.
In this problem, the mass is given as 20 kg, and the force of gravity is 4 m/s^2. Substituting these values into the formula, we get:
W = (20 kg)(4 m/s^2) = 80 N
Therefore, the object's weight on this planet is 80 N.