Q171. A 5 kg block is moved from the rest through a distance of 4 m along the x-direction. A force equal to 20 N acts on it. If the block acquires a K.E. equal to 40 J, what is the angle the force makes with x—axis?Physics — Work, Power and Energy — Question 171 of 238A. 0oB. 30oC. 45oD. 60oPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →