According to the rules of golf, a golf ball cannot weigh more than 45.97 grams, and it must be at least 4.267 cm in diameter. The volume of a sphere is (4/3)πr3, where r is the radius.

Question

According to the rules of golf, a golf ball cannot weigh more than 45.97 grams, and it must be at least 4.267 cm in diameter.  The volume of a sphere is (4/3)πr3, where r is the radius.

What is the density of a 45.67  g golf ball with a diameter of 4.267  cm?

R_scott · Answer

radius (r) is equal to half of the diameter

so the volume of the ball is ... (4/3) π (d/2)^3

divide the mass (weight) by the volume to find the density
... there are only four significant figures in the answer