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Social Science8 A ball of mass M at the end of a string is swungin a horizontal circular path of radius R at con-stant speed V. Which combination of changeswouldrequiretripetal force acting on the ball?(1) doubling V and doubling R(2) doubling. V and halving R(3) halving V and doubling R(4) halving V and halving Rthegreatest increase in the cen-.
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8 A ball of mass M at the end of a string is swung in a horizontal circular path of radius R at con- stant speed V. Which combination of changes would require tripetal force acting on the ball? (1) doubling V and doubling R (2) doubling. V and halving R (3) halving V and doubling R (4) halving V and halving R the greatest increase in the cen- .
Expert Answer
Given information:
Mass of the ball = M
Initial velocity of the ball = V
Radius of the path = R
We know that centripetal ...
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му2 F R Now consider the option 1 V 2V; R 2R М(2V)2 F 2F 2R Now consider the option 2 V 2V; R R/2 М(2V)2 8F F R/2 Now consider the option 3 V = V/2; R 2R M(V/2) F = = F/8 R Now consider the option 4 V = V/2; R R/2 M(V/2) F/2 F R/2
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