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100g is attached at the end of string of lenges 48.5 cm. Find angular velocity and tension the string, if bob is rotated now at 600 r.p.m. in horizontal circle (Neglect the weight of strin and bob). If the same bob is now whirled in vertical circle of same radius, what will be th difference in tensions at lowest and highes point ? Data: ) A spherical bob of diameter 3 em having a ma D = 3cm, R=5= 1.5 cm = 1.5×10-2 tt, 1 48.5 cm 48.5 x 10m r =R-1=48.5 x 10-2 + 1.5 × 10-2 50x 10m m = 100g=0.1kg n 600 r.p.m. 10 H, T-? ' w-? (For U.C.M.) Τι ? T2 ? (For Non U.CMl. Solut olution: Angular velocity ω=2×3.142 x 10 ω 62.84 rad/s = Tension in the string T=mro T = (0.1) (50 x 10-2) (62.84)- T = 197.4 N Difference in tensions at lowest and highe point T2-T1 = 6mg

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