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Recent questions tagged telegram-45976

(chatquestion)...body after 2s is : the Gc=ims2 (2) 25 ms-2 (3) 15 ms(4) 7 ms-2 (1) 2 ms-2 A sphere of mass m, moving with velocity v, enters a hanging bag of sand and stops. If the mass of the bag is M and it is raised by height h, then the velocity of the sphere was : By LOCD Linear Mon. mV=(mmsyet 5. M+m (1) /2 gh By /2gh LOC of Eney (2) m Vsystem /2gh m 2 gh fm Owe get /2 gh om om of (3) M+m (4) V=[MMNgh E Two solid rubber balls A and B having mases ma 200 and 400 g, respectively, are moving in opposite directions with velocity of A equal to Vel. -0.3 m/s. After collision, the two balls come to rest, Aia to daw o Cons miXU,tmXV2 (2) 1.5 m/s A Both the ball me to rest after m2=0-4bg. then the velocity of B is : (1) 0.15 m/s2 Y0:3 Ho 4XU0 V=02X0.3 0.4 (3) 0.10 m/s (4) None of above ousim-mik, +m M 7. 41 A particle is moving on a circular path of radius with uniform velocity v. The changein velocity when the particle moves from P to Q'isZPOQ = 40°) Suppse at the PÅ 9 m the ireuler Path the Paut Ve 0-40 vel. V. if (1) 2v cos 40° (2) 2v sin 40° (3) 2v sin 20 8. (4) 2v cos 20° A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the nth power of R. If the period of rotation of the particle is T, then: (1) Toc R (2) Toc R for any n (3) To R2 (4) Toc Ra/2 100

asked Jan 19, 2020 by balaji.thirumalai

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