Question

A 40.0 kg objects is subject to two forces, one of +18.0 N and one of -6.0 N. What is the acceleration the crate undergoes?

A. 0.3 m/s2 B. 1.67 m/s2 C. 3.3 m/s2 D. 4.0 m/s2 E. 480 m/s2

Answer 1

∑F=m.a

18 - 6 = 40 x a

12 = 40a

a = 0.3 m/s²