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Please tell me the answer of this question [step by step explanation] |
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Answer» Answer: a)628m b) 200m Step-by-step explanation: a) distance travelled : r=d/2 r=200/2=100 circumfrence=2πr 2x3.14x100 =628m b) 1min 10sec=70sec distance travelled in 20 sec=628 distance travelled in 70 sec=2198 total rounds =2198/628=3.5 or 3 and 1/2 round therefore DISPLACEMENT would be DIAMETER of the grond =200m (displacement is the SHORTEST route from the point to initial position) |
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