2. An egg drops from a second-story window, taking 1.22 s to fall and reaching a

Question

2. An egg drops from a second-story window, taking 1.22 s to fall and reaching a speed of 11.9 m/s just before hitting the ground. On contactwith the ground, the egg stops completely in 0.132 s. Calculate the average magnitudes of itsacceleration while falling and while stopping.
m/s2 (acceleration whilefalling)
m/s2 (deceleration whilestopping)

3. A gazelle accelerates from rest at 4.3 m/s2 over a distance of 64 m to outrun a predator. What is its finalspeed?
1 m/s
3. A gazelle accelerates from rest at 4.3 m/s2 over a distance of 64 m to outrun a predator. What is its finalspeed?
1 m/s

Explanation / Answer

you need to find the acceleration that occurs while stopping from11.9 m/s to 0 m/s over a time of .132: v=v0+a*t 0=11.9+a*.132 a=-90.2 m/s2 you want to give your answer as positive 90.2 because its askingfor the magnitude.

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