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normo banked curves and circular motion (1 Viewer)

anonymoushehe

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these are from the normo 2020 trials but there are no solutions to this and i was wondeirng what the answers are for these? Screenshot 2024-11-27 at 5.35.36 pm.png
 

wizzkids

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Question 22.
The centripetal acceleration of a car executing circular motion on a flat road can be described by ac=v2/r
If the friction with the road is suddenly half, then the centripetal acceleration must be half.
The velocity must reduce to
Question 23.
Which part can't you do? Can you draw the labelled vector diagram?
The angle comes to 14.1 degrees.
 

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