pls anyone answer all this question
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its class 9 question chapter circles
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pls anyone answer all this question
don't spam
pls urgent
Its most important test
its class 9 question chapter circles
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Answer:
Step-by-step explanation:
Given radius of wheel = 40cm
Perimeter = 2πr=80π cm
Speed of car = 66 km/he = 66× 18/5m/s
We know speed = time/distance
Distance travelled in 10 min=66× 5/18 =distance/10x60
distance = 66× 5/18x10x60
distance = 11000 m=11 km$$
now 1 complete revolution = 2πr
Total no. of complete revolution = 11000/140x22/7x100
=4375
Hence 4375 revolution complete in 10 m