An object of mass 20g is executing uniform circular motion on a circular path of radius 2m with a time period of 1/2sec. Find centripetal force acting on it.
Thanks!
Please help?
2016-06-13 12:20 pm
回答 (1)
2016-06-13 12:24 pm
✔ 最佳答案
velocity = distance / time = circumference / periodv = 2πr / T = 2π * 2m / 0.5s = 25 m/s
F = mv²/r = 0.020kg * (25m/s)² / 2m = 6.3 N ◄
which perhaps should be rounded to 6 N owing to the data.
Hope this helps!
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