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. 5 N
b. 200 N
c. 0.2 N
d. 80 N
The weight (W) of an object is calculated using the formula W = mg, where m is the mass of the object and g is the force of gravity. In this case, the mass is given as 20 kg and the force of gravity is given as 4 m/s^2. Plugging these values into the formula, we get W = (20 kg)(4 m/s^2) = 80 N.
Therefore, the object's weight is 80 N.
Answer: d. 80 N