A 100 Kg Block on a Table Is Connected by a a String

Multiple Choice

A 10.0 kg block on a table is connected by a string to a 63 kg mass,which is hanging over the edge of the table.Assuming that frictional forces may be neglected,what is the magnitude of acceleration of the 10.0 kg block when the other block is released? (See the figure. )

A) 8.5 m/s²
B) 8.1 m/s²
C) 7.5 m/s²
D) 9.0 m/s²