Julius competes in the hammer throw event. The hammer has a mass of 7 point 2 6 kilograms and is 1 point 2 1 5 m long. What is the centripetal force on the hammer when it has a tangential speed of 31 point 9 5 m/s ? The answer is rounded off to the nearest whole number.
Answer
A
6 comma 100 cap n
B
1 comma 400 cap n
C
840 cap n
D
190 cap n
Explanation
Centripetal force is calculated with F = mv²/r. Using the given values, F = (7.26 kg)(31.95 m/s)² ÷ 1.215 m ≈ 6,099.6 N, which rounds to 6,100 N. The correct choice is 6,100 N.
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