An object of mass m is falling from a building in the absence of air resistance and F
is the force of gravity.

What is the relationship between the force of gravity acting on the object (F
) and its mass (m
)?

A
F=m/g

B
F=g/m

C
F=mg

D
F=m2g

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.