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?
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?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter3: Motion Along A Straight Line
Section: Chapter Questions
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.
the question is on the image below:
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