Question 1. A 7.3 kg bowling ball is dropped from the top of a building that is

Question

Question 1. A 7.3 kg bowling ball is dropped from the top of a building that is 40 m high. How long will it take for the bull to hit the ground? 2. If instead, a 100 g steel ball were dropped from this height, what would the time be Find the percent deviation in your value for g from Data Table A and for a in Duta Table B Do this by dividing the average deviation by the average value and multiplying by 100 3. How does the result from Question 3 compare to your percent error? State what this mcans in terms of how accurate and precise the two methods are in determining s

Explanation / Answer

1)

vi = 0 m/s

d = -40 m

a = -9.8 m/s^2

use:

d = vi*t + 0.5*a*t^2

-40 = 0 + 0.5*(-9.8)*t^2

4.9*t^2 = 40

t^2 = 8.163

t = 2.9 s

Answer: 2.9 s

2)

Time is independent of mass

Answer: 2.9 s

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