Question 1 1 pts A 150 N crate is being pushed up a 28 ramp at constant speed by a force of 100 N parallel to the ramp. Determine the acceleration the crate will have down the ramp, if it is released at some point on the ramp. O 1.34 m/s 2.06 m/s 1.67 m/s 2.67 m/s Question 2 1 pts Determine the magnitude of the minimum perpendicular force that must be applied to a 3.0 kg book to keep it from sliding down a vertical wall. 3kg H = 0.60 Hk = 0.40 00 50 N 00 75 N 25 N 5 N 10 N Question 3 1 pts A 3 kg mass at rest on the floor is attached to a string which goes vertically to a pulley. A weight is attached to the other end of the string and released. If the 3 kg mass rises 50 cm in 1 s, find is the value of the other mass. 3.68 kg 5.83 kg 6.25 kg 3.89 kg Question 5 1 pts A 12 kg crate, resting on a horizontal surface, is pulled by a force that is applied at an angle of 30 above the horizontal. Find the minimum force needed to start the crate moving if the coefficient of static friction is 0.40. O 44 N O 54 N 56 N O 47 N O 71 N Question 6 1 pts A 10 kg mass is accelerated along a horizontal floor at 2.0 m/s by a 50 N force applied at an angle of 30 above the horizontal. Determine the coefficient of friction between the mass and the floor. 0.36 O 0.21 0.26 0.31 O 0.19