Question

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 right and a horizontal force of 30 N to the left. 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 right.
D. 210.0 m/s2 to the right.

Answer 1

Answer:

B

Explanation:

as force =70-30 =40

and force = mass ×accleration

so 40 =10×A

A=40÷10=4

and acts to the right