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1. A 900 kg car moving at 10 ms^{-1} takes a turn around a circle with a radius of 25 m. Determine the acceleration and the net force acting upon the car.
 
Solution:
 
When the car turns around circle, it experiences ,
 
a=iii
 
Substitute the values,
 
a =  ms^{-1}
 
The formula to calculate the force is given as,
 
 
Substitute the known values,
 
Force =  N
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