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Solved: Falling Can. A painter is standing on scaffolding
Chapter 2, Problem 91P(choose chapter or problem)
Problem 91P
Falling Can. A painter is standing on scaffolding that is raised at constant speed. As he travels upward, he accidentally nudges a paint can off the scaffolding and it falls 15.0 m to the ground. You are watching. and measure with your stopwatch that it takes 3.25 s for the can to reach the ground. Ignore air resistance. (a) What is the speed of the can just before it hits the ground? (b) Another painter is standing on a ledge, with his hands 4.00 m above the can when it falls off. He has lightning-fast reflexes and if the can passes in front of him, he can catch it. Does he get the chance?
Questions & Answers
QUESTION:
Problem 91P
Falling Can. A painter is standing on scaffolding that is raised at constant speed. As he travels upward, he accidentally nudges a paint can off the scaffolding and it falls 15.0 m to the ground. You are watching. and measure with your stopwatch that it takes 3.25 s for the can to reach the ground. Ignore air resistance. (a) What is the speed of the can just before it hits the ground? (b) Another painter is standing on a ledge, with his hands 4.00 m above the can when it falls off. He has lightning-fast reflexes and if the can passes in front of him, he can catch it. Does he get the chance?
ANSWER:
Solution
Step 1 of 5
(a) What is the speed of the can just before it hits the ground?
Given data,
Height of the scaffolding from ground, H= 15 m
Acceleration due to gravity, a= g = 9.8
Time taken by paint can to reach ground, t= 3.25 s
To find,
Speed of can just before it reaches ground=?