Physics, asked by yashnagpal60, 6 months ago

Is work done when a force is exerted by gravity on the barbell while being lifted by the weightlifter

Answers

Answered by swamyg79494

1

Answer:

$work\:is\:done\:as\:the\:weight\:lifter\:lifts\: the\:weight</p><p>\\let\:us\: take \:weight \:as\: m </p><p>\\so\:work\:done\:is\:equal\: to</p><p>\\mgcos180$

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