Priya drags her school bag along the ground by pulling it with a constant force of…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Priya drags her school bag along the ground by pulling it with a constant force of 20N directed due east. Starting from the school gate, she walks 40m due east, then 30m due north, and finally 40m due west.
Answer the following questions.
(i) Determine the magnitude and direction of the net displacement of the bag from the school gate after Priya completes the walk.
(ii) Calculate the total mechanical work done by Priya on the bag during the entire walk.
(iii) Priya thinks the longer her path, the more work she has done. Using your result, explain whether her thought is correct.