A crate of mass 15 kg is pulled up a smooth slope inclined at 30∘ 30^\circ\,30∘ to the horizontal by a force of 120 N acting parallel to the slope.
Taking the acceleration due to gravity as g=9.8 m/s2g = 9.8\text{ m/s}^2g=9.8 m/s2, calculate the acceleration of the crate up the slope.
3.1 m/s23.1\text{ m/s}^23.1 m/s2
4.9 m/s24.9\text{ m/s}^24.9 m/s2
8.0 m/s28.0\text{ m/s}^28.0 m/s2
12.9 m/s212.9\text{ m/s}^212.9 m/s2