A boy starts from his home and walks along a straight road as follows:

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A boy starts from his home and walks along a straight road as follows: (i) 120 m120\,\text{m} east in 2 min2\,\text{min}, (ii) 80 m80\,\text{m} east in 1 min1\,\text{min}, (iii) 100 m100\,\text{m} west in 1.5 min1.5\,\text{min}. Answer the following: (a) Calculate the total distance travelled. (b) Calculate the total displacement from home. (c) Find the average speed for the entire walk. (d) Find the average velocity for the entire walk.

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