PhysicsMedium70×since 2002Q8566A mass of MMM kgkgkg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of 45∘{45^ \circ }45∘ with the initial vertical direction isAMg(2+1)Mg\left( {\sqrt 2 + 1} \right)Mg(2+1)BMg2Mg\sqrt 2Mg2CMg2{{Mg} \over {\sqrt 2 }}2MgDMg(2−1)Mg\left( {\sqrt 2 - 1} \right)Mg(2−1)Check answerSkip