Aball on a porch rolls 60 cm to the porch’s edge, drops 40 cm, continues rolling on the grass, and eventually stops 80 cm from the porch’s edge. what is the magnitude of the ball’s net displacement, in centimeters? knight, randall d., (professor emeritus). college physics (p. 29). pearson education. kindle edition.

Explanation:

first ball rolls on the porch by total distance

Then again it will move on horizontal floor

also in vertical direction it will drop down

so we have

so magnitude of net displacement of the ball is given as

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explanation:

a electromagnetic waves