The maximum mass the can be hung vertically from a string without breaking the string is 10kg. a length of this string that is 2m long is used to rotate a 0.5kg object in a circle on a frictionless table with the string horizontal. the maximum speed that the mass can attain under these conditions without the string breaking is most nearly:
answer is 20 m/s
show me how i can get the answer. you.
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Ответ:
Explanation:
Think about circular motion when answering this question. First determine the maximum force that can be applied on the string. F = mg so F = (10)(10) = 100 N. Then determine the centripetal acceleration of the .5 kg mass, a = F/m so a = 100/.5 = 200 m/s². On the equation sheet, use equation a(centripetal acceleration) = v²/r so 200 = v²/2 therefore v = 20 m/s. Hope this helps!
Ответ:
195
Explanation: