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Home Q & A Board Science-Related Homework Help Physics
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mikael mikael
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9 years ago

 
A crane lifts a 425 kg steel beam vertically upward a distance of 36 m. How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s2? Neglect frictional forces. 
A)
 
1.8 × 105 J 
B)
 
1.0 × 105J 
C)
 
1.2 × 105 J 
D)
 
1.5 × 105 J 
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bio_manbio_man
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9 years ago
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mikael Author
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9 years ago
Thanks for the help
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