A steel drill is making 180 revolutions per minute, under a constant torque of 5 N-m. If it drills a hole in 7s. in a steel block of mass 600 gm, rise in temperature of the block is (s = 0.1 cal//gml//^(@)C)

A steel drill is making 180 revolutions per minute, under a constant t

1.	A steel drill is making 180 revolutions per minute, under a constant torque of 5 N-m. If it drills a hole in 7s. in a steel block of mass 600 gm, rise in temperature of the block is (s = 0.1 cal//gml//^(@)C)
Answer» `2.6^@C` `1.3^@C` `5.2^@C` `3^@C` ANSWER :A