In the hammer throw, an athlete spins a heavy mass in a circle at the end of a c

ID: 1285843 • Letter: I

Question

In the hammer throw, an athlete spins a heavy mass in a circle at the end of a cable before releasing it for distance. For male athletes, the "hammer" is a mass of 7.3 kg at the end of a 1.2 m cable, which is typically a 3.0-mm-diameter steel cable. A world-class thrower can get the hammer up to a speed of 29 m/s. If an athlete swings the mass in a horizontal circle centered on the handle he uses to hold the cable. Tension = 5120 N.

1) How much does the cable stretch? Young modulus for steel is 20

Explanation / Answer

A) Solve for centripetal force
F= (mv^2)/r
B) Substitute the value of force in the following equation:
delta(L)=(FxL)/(p x A)

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In the gure below, a slab of mass m = 40 kg rests on a frictionless floor, and a

In the hammer throw, an athlete spins a heavy mass in a circle at the end of a c

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In the hammer throw, an athlete spins a heavy mass in a circle at the end of a c

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