A block of mass 4.0 kg is sitting on a frhorizontal ictionless surface and is pulled with a rope that makes an angle of 30 with the horizontal, as shown in the drawing below. The tension in the rope is 25 N. What is the acceleration of the block along the surface?
(a) 5.41 m/s2 answer
(b) 7.81 m/s2
(c) 2.24 m/s2
(d) 3.54 m/s2
(e) 8.42 m/s2
In the preceding question, let the weight of the block be denoted by W. How does the normal force FN compare with W?
(a) FN > W
(b) FN = W
(c) FN < W answer
