We are asked how much work do you do on the silver sphere if you raise it from the floor to a height of 2.1 m.
You may want to reference (Pages 15 - 16) Section 1.4 while completing this problem.
Consider the two spheres shown here, one made of silver and the other of aluminum.
The force of gravity acting on an object is F = mg, where m is the mass of an object and g is the acceleration of gravity (9.8 m/s2). How much work do you do on the silver sphere if you raise it from the floor to a height of 2.1 m?
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