A rock is thrown from a top of a 100m tall building with an initial horizontal velocity if 5m/s. It reached the ground after 2.3s. 1. What is the velocity of the rock at exactly 1s? 2. What is the velocity of the rock as it hits the ground? 3. What is the total time of falling? 4. What is the range?

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Chapter3: Motion Along A Straight Line
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Problem 79P: Between t=0 and t=t0 , a rocket moves straight upward with an acceleration given by a(t)=ABt1/2 ,...
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I answered numbers 1-3, can yoou please answer 4 and 5? here are the answers from 1-3:

1.) velocity at t= 1s

= 11.002 m/s

2.)Rock velocity as it hits the ground

= 44.58 m/s.


3.) Total time falling

=4.52 s.

 

 

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A rock is thrown from a top of a 100m tall building with an
initial horizontal velocity if 5m/s. It reached the ground after
2.3s.
1. What is the velocity of the rock at exactly 1s?
2. What is the velocity of the rock as it hits the ground?
3. What is the total time of falling?
4. What is the range?
Transcribed Image Text:Seatwork (Individual) A rock is thrown from a top of a 100m tall building with an initial horizontal velocity if 5m/s. It reached the ground after 2.3s. 1. What is the velocity of the rock at exactly 1s? 2. What is the velocity of the rock as it hits the ground? 3. What is the total time of falling? 4. What is the range?
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