A particle of mass 20 g moves along a circle with a constant tangential acceleration equal to 2 m/s2. What is the magnitude of its velocity when particle moved through a distance 4 m, after starting from rest?
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Explanation:
r=π20
r=π20In two revolution , distance is s=2×2πr=80m
r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.
r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.⟹a=2sv2=2×8080×80
r=π20In two revolution , distance is s=2×2πr=80mNow, v2=2as for zero initial speed.⟹a=2sv2=2×8080×80⟹a=40m/s2
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