Answer to Question #187089 in Physics for siti fatisah

Question

(a) Laila went to the Big Bang concert and luckily, she has a chance to meet the singer backstage. She brought a present box with a mass of 3.5 kg and passed the present on their make-up desk with a force of 38 N. She found that the desk position is slightly inclining upward about 11° to the horizontal. She also noticed that the desk was not smooth and possibly the desk has a coefficient of kinetic friction, µk around 0.11. (i) Draw free body diagram and find the normal force exerted on the present. [CO1, PO1] (5 Marks) (ii) Determine the net horizontal forces on the present. [CO2, PO2] (3 Marks) (iii) Calculate the acceleration of the present as Laila pushes the present on the desk. [CO2, PO2] (2 Marks

Answer 1

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