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40V A constant force vecF is acting on a body of mass m makes it move with constant velocity vecv as shown in the M figure. The power P exerted is 

Answer» <html><body><p>`F cos theta <a href="https://interviewquestions.tuteehub.com/tag/v-722631" style="font-weight:bold;" target="_blank" title="Click to know more about V">V</a>`<br/>`(F cos theta)/(<a href="https://interviewquestions.tuteehub.com/tag/mg-1095425" style="font-weight:bold;" target="_blank" title="Click to know more about MG">MG</a>)`<br/>`(F mg cos theta)/(v)`<br/>`(mg sin theta)/F`</p>Solution :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/MTG_NEET_GID_PHY_XI_C04_E01_062_S01.png" width="80%"/> <br/> <a href="https://interviewquestions.tuteehub.com/tag/power-2475" style="font-weight:bold;" target="_blank" title="Click to know more about POWER">POWER</a> = (<a href="https://interviewquestions.tuteehub.com/tag/component-926634" style="font-weight:bold;" target="_blank" title="Click to know more about COMPONENT">COMPONENT</a> of <a href="https://interviewquestions.tuteehub.com/tag/force-22342" style="font-weight:bold;" target="_blank" title="Click to know more about FORCE">FORCE</a> in the direction of velocity) `|vecv|`<br/> `= F cos theta v`.</body></html>


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