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Student & Learning Zone - City & Guilds
C&G 202 Question
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<blockquote data-quote="jonnymc11" data-source="post: 8574" data-attributes="member: 646"><p>A building hoist is to be used to raise sixty 50kg bags of cememt to the top of a 100m high buliding in 1 minute. Assuming the acceleration due ti gravity would be 10m/s(2), the size of the hoist motor would be:</p><p></p><p>A- 10kW</p><p></p><p>B- 50Kw &lt;--------- correct answer, BUT HOW!? please</p><p></p><p>C- 60Kw</p><p></p><p>D 100Kw</p><p></p><p>I thought it may have been:</p><p></p><p>wd(work done)-F=mg</p><p></p><p>therefore f X d</p><p></p><p>but still no clue.... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p></blockquote><p></p>
[QUOTE="jonnymc11, post: 8574, member: 646"] A building hoist is to be used to raise sixty 50kg bags of cememt to the top of a 100m high buliding in 1 minute. Assuming the acceleration due ti gravity would be 10m/s(2), the size of the hoist motor would be: A- 10kW B- 50Kw <--------- correct answer, BUT HOW!? please C- 60Kw D 100Kw I thought it may have been: wd(work done)-F=mg therefore f X d but still no clue.... :( [/QUOTE]
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C&G 202 Question
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