A heavy block kept on a frictionless surface and being pulled by two ropes of equal mass m. At t = 0, the force on the left rope is withdrawn but the force on the right end continues to act. Let F_(1) and F_(2) be the magnitude of the forces by the right rope and the left rope on the block respectively

A heavy block kept on a frictionless surface and being pulled by two r

1.	A heavy block kept on a frictionless surface and being pulled by two ropes of equal mass m. At t = 0, the force on the left rope is withdrawn but the force on the right end continues to act. Let F_(1) and F_(2) be the magnitude of the forces by the right rope and the left rope on the block respectively
Answer» `F_(1)=F_(2)=F` for `t lt 0` `F_(1)=F_(2)=F+mg` for `t lt 0` `F_(1)=F, F_(2)lt F` for `t lt 0` `F_(1)lt F, F_(2)=F` for `t lt 0` ANSWER :A