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Question 21M.2.SL.TZ1.d.ii

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Date May 2021 Marks available [Maximum mark: 3] Reference code 21M.2.SL.TZ1.d.ii
Level SL Paper 2 Time zone TZ1
Command term Calculate, State Question number d.ii Adapted from N/A
d.ii.
[Maximum mark: 3]
21M.2.SL.TZ1.d.ii

Player B intercepts the ball when it is at its peak height. Player B holds a paddle (racket) stationary and vertical. The ball is in contact with the paddle for 0.010 s. Assume the collision is elastic.

Calculate the average force exerted by the ball on the paddle. State your answer to an appropriate number of significant figures.

[3]

Markscheme

Δv = 21 «m s−1» 

F=0.0027 ×210.01

OR

5.67 «N» 

any answer to 2 significant figures «N»