A student pulls a suitcase of mass 10kg along a perfectly smooth airport floor by exerting a constant force of magnitude 100N at an angle of 30∘ above the horizontal. The suitcase starts from rest and is pulled through a horizontal distance of 20m. Take g=9.8ms−2.
a. (i) Calculate the work done by the student’s force on the suitcase during the 20m pull.
b. (ii) Determine the speed of the suitcase after it has moved the given distance.