The average nascar race car weighs 3400 lbs. At a recentnascar race teh cars wen

Question

The average nascar race car weighs 3400 lbs. At a recentnascar race teh cars went flying around the banked curves atDaytona Int. Speedway. The banking of the curves are 31degrees. a. What is the centripetal force on the car keepingit going around the curve at a speed of 200 mph? b. Suppose teh curve was not banked. What would be thecentripetal force on the car keeping it going around the curve at aspeed of 200 mph. The average nascar race car weighs 3400 lbs. At a recentnascar race teh cars went flying around the banked curves atDaytona Int. Speedway. The banking of the curves are 31degrees. a. What is the centripetal force on the car keepingit going around the curve at a speed of 200 mph? b. Suppose teh curve was not banked. What would be thecentripetal force on the car keeping it going around the curve at aspeed of 200 mph.

Explanation / Answer

The average nascar race car weighs 3400 lbs. At a recentnascar race teh cars went flying around the banked curves atDaytona Int. Speedway. The banking of the curves are 31degrees. a. What is the centripetal force on the car keepingit going around the curve at a speed of 200 mph?
200mph=89.4m/sec
radius of the curve=89.4*89.4/9.8*tan31=1357.43m
3400lb=1542.2kg
now centripetal force=mv*v/r=1542.2*89.4*89.4/1357.43=9080.2N b. Suppose the curve was not banked. What would be thecentripetal force on the car keeping it going around the curve at aspeed of 200 mph.
centripetal force remains constant.
centripetal force=mv*v/r=1542.2*89.4*89.4/1357.43=9080.2N

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