An 8-Kg Mass Is Pulled Across a Smooth Floor Using $2$

Multiple Choice

An 8-kg mass is pulled across a smooth floor using a rope. The rope makes an angle of 28° with the floor. If the tension in the rope is 45 N, the acceleration of the 8-kg mass is

A) 7.8 m/s $2$
B) 7.2 m/s $2$
C) 6.2 m/s $2$
D) 5.0 m/s $2$