A string of negligible mass passes over a pulley of mass m which is clamped. It supports a block of mass M at its lower free end. What is force exerted on pulley by the support ?

A string of negligible mass passes over a pulley of mass m which is cl

1.	A string of negligible mass passes over a pulley of mass m which is clamped. It supports a block of mass M at its lower free end. What is force exerted on pulley by the support ?
Answer» <html><body><p></p>Solution :There are <a href="https://interviewquestions.tuteehub.com/tag/two-714195" style="font-weight:bold;" target="_blank" title="Click to know more about TWO">TWO</a> forces acting on <a href="https://interviewquestions.tuteehub.com/tag/support-1235361" style="font-weight:bold;" target="_blank" title="Click to know more about SUPPORT">SUPPORT</a>,<br/>(i) T, the tension due to horizontal <a href="https://interviewquestions.tuteehub.com/tag/part-596478" style="font-weight:bold;" target="_blank" title="Click to know more about PART">PART</a> of <a href="https://interviewquestions.tuteehub.com/tag/string-11290" style="font-weight:bold;" target="_blank" title="Click to know more about STRING">STRING</a>, where T = Mg<br/>(ii) (M + m)g, <a href="https://interviewquestions.tuteehub.com/tag/total-711110" style="font-weight:bold;" target="_blank" title="Click to know more about TOTAL">TOTAL</a> weight of pulley and block along vertical.<br/>`F=sqrt((Mg)^(2)+[(M+m)g]^(2))`<br/>`= (sqrt((M+m)^(2)+M^(2)))g`<br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_NEO_CAO_PHY_XI_V01_MP1_C05_SLV_064_S01.png" width="80%"/></body></html>