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Calculate the power output in watts and horsepower of a
Chapter 7, Problem 46(choose chapter or problem)
Calculate the power output in watts and horsepower of a shot-putter who takes \(1.20 \mathrm{~s}\) to accelerate the \(\text { 7.27-kg }\) shot from rest to \(14.0 \mathrm{~m} / \mathrm{s}\), while raising it \(0.800 m\). (Do not include the power produced to accelerate his body.)
Figure \(7.42\) Shot putter at the Dornoch Highland Gathering in \(2007\). (credit: John Haslam, Flickr)
Equation Transcription:
Text Transcription:
1.20 s
7.27-kg
14.0 m/s
0.800 m
7.42
2007
Questions & Answers
QUESTION:
Calculate the power output in watts and horsepower of a shot-putter who takes \(1.20 \mathrm{~s}\) to accelerate the \(\text { 7.27-kg }\) shot from rest to \(14.0 \mathrm{~m} / \mathrm{s}\), while raising it \(0.800 m\). (Do not include the power produced to accelerate his body.)
Figure \(7.42\) Shot putter at the Dornoch Highland Gathering in \(2007\). (credit: John Haslam, Flickr)
Equation Transcription:
Text Transcription:
1.20 s
7.27-kg
14.0 m/s
0.800 m
7.42
2007
ANSWER:
Solution 46 PE
Step 1 of 5
The power output of the shot-putter can be calculated by finding the sum of work done in raising the shot put to 0.8 m which is nothing but the gravitational potential energy of the shot put at that height (W1 ) and work done in accelerating the shot put from rest to 14.0 m/s (W2)