Free Safety Signs

Momentum Problem----Physics?

The 90 [kg] punt returner runs 18[m] from the 10 yardline to the 292/3 yardline in 3 seconds. During the 5[s] that the punted ball was in the air and the 3[s] of the punt return run, a 110 [kg] defensive safety moves from the 50 yardline to the 292/3 yardline ... (Δx=22.2[m]) a) What was the free safety's average velocity? (including sign!) b) What was the safety's average momentum? c) How much action did the safety do? d) Explain how the bigger guy could do less action even though he went farther.

Public Comments

1. what is "292/3 yardline" ? do you mean 97.3 yardline ? But if he runs 18 meters (19.7 yards) from the 10 yardline he should be at the 19.7 line, not 97.3 yardline. Come back when you can express the problem clearly. .