A 60-kg block slides along the top of a 10O kg block. The 60-kg block has an acceleration of 7 m/s2 when a horizontal force Fof 777 N is applied, as in the Figure. There is no friction between the 100-kg block and a horizontal frictionless surface, but there is friction between the two blocks. Calculate the coefficient of kinetic friction between the blockn. (Your result must contain 2 digits after the decimal. Take g-9.81 m/s2.2% of error will be tolerated in your answers.) 100kg 0.61