12. What applied horizontal force will accelerate a 200-kg crate at 1 m/s2 across a factory floor against a friction force half its weight? A) 600 N

B) 1600 N

C) 1200 N

D) 2400 N

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers