Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

The masses of the javelin, discus, and shotput are0.80 kg, 2.0 kg,and 7.2 kg, re

ID: 1682065 • Letter: T

Question

The masses of the javelin, discus, and shotput are0.80 kg, 2.0 kg,and 7.2 kg, respectively, and recordthrows in the corresponding track events are about 89 m, 69 m, and21 m, respectively. Neglecting air resistance, estimate the average force exertedon each object during the throw, assuming the force acts over adistance of 2.0 m. Javelin = ? Discus = ? Shotput = ? The masses of the javelin, discus, and shotput are0.80 kg, 2.0 kg,and 7.2 kg, respectively, and recordthrows in the corresponding track events are about 89 m, 69 m, and21 m, respectively. Neglecting air resistance, estimate the average force exertedon each object during the throw, assuming the force acts over adistance of 2.0 m. Javelin = ? Discus = ? Shotput = ?

Explanation / Answer

Javelin = mg = 0.8x9.81 N = 7.848 N
Discus = mg = 2x9.81 N = 19.6 N
Shotput = mg = 7.2 x 9.81 N = 70.632 N