10) A 40.0-kg crate is being raised by means of a rope. If the force exerted by the rope on the crate is 472 N, What is the upward acceleration of the crate (in m/s)? A) 9.81 (B) 1.99 (C) 11.8 (D) 4.1 1) A particle of mass 1.3 kg is sliding down a frictionless slope inclined at an angle 30 to the horizontal. What is its acceleration (in m/s2)? (A) 9.81 (B) 12.8 (C) 8.49 (D) 4.90