A 100 Kg Block on a Smooth Horizontal Surface Is Acted

Multiple Choice

A 10.0 kg block on a smooth horizontal surface is acted upon by two forces: a horizontal force of 70 N acting to the left and a horizontal force of 30 N to the right. The acceleration of the block will be

A) 2.3 m/s² to the right.
B) 4.0 m/s² to the right.
C) 10.0 m/s² to the left.
D) 4.0 m/s² to the left.