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OpenStudy (anonymous):
A student pushes a 40-N block across the floor for a distance of 10 m. How much work was applied to move the block? A. 4 J B. 40 J C. 400 J D. 4000 J
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OpenStudy (anonymous):
we know force ,f=ma and work done w=force.displacement
OpenStudy (anonymous):
w=mas
OpenStudy (anonymous):
umm..... alittle confusing
OpenStudy (anonymous):
but in your question ma=40 n is given and s=10 m is given.put the values and get answer
OpenStudy (anonymous):
w=40.10=400j
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OpenStudy (anonymous):
oh ok thank you again
OpenStudy (anonymous):
welcome
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