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A 40kg by runs up a stair case of 50 steps each of 15cm in height in 10s, h is power |
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Answer» the steps =40kgnumber of steps ran =50 height of each step = 15s =1.5 hh= height to which is raisedtotal height to which is raised is GIVEN asH=n H inserting the valuesH =50 x 0.15 =75 mW = work done = potential energy gainedwe know that the potential energy gained is given asPE = mghW= work done= PE =mght = TIME taken to travel the height = 10 sPower is given ASP =W/tP = mgh /tinserting the valuesP = (40 x 9.8 x 7.5) / 10 =294P = 294 wattI hope answer will help you........ |
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