Consider a dumbbell consisting of two masses of m=200gm each at the ends of a massless rod of length l=30cm. The dumbbell is at res on a frictionless horizontal table of mass 30Kg. A particle of mass M=1Kg moves towards the dumbbell at a speed Vo =10m/ perpendicular to the dumbbell. The mass M collides elastically with one of the masses of the dumbbell. Afterwards it is observed that M moves perpendicular to its original direction, with speed u. Find the value of u. O a. 10 m/s Ob. -40/V14 m/s 40/V 14 m/s O d. None of the given options O e. -10 m/s
Consider a dumbbell consisting of two masses of m=200gm each at the ends of a massless rod of length l=30cm. The dumbbell is at res on a frictionless horizontal table of mass 30Kg. A particle of mass M=1Kg moves towards the dumbbell at a speed Vo =10m/ perpendicular to the dumbbell. The mass M collides elastically with one of the masses of the dumbbell. Afterwards it is observed that M moves perpendicular to its original direction, with speed u. Find the value of u. O a. 10 m/s Ob. -40/V14 m/s 40/V 14 m/s O d. None of the given options O e. -10 m/s
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Transcribed Image Text:Consider a dumbbell consisting of two masses of m=200gm each at the ends of a massless rod of length l=30cm. The dumbbell is at rest
on a frictionless horizontal table of mass 30Kg. A particle of mass M=1Kg moves towards the dumbbell at a speed Vo =10m/s
perpendicular to the dumbbell. The mass M collides elastically with one of the masses of the dumbbell. Afterwards it is observed that M
moves perpendicular to its original direction, with speed u. Find the value of u.
Oa.
10 m/s
O b.
-40/V 14 m/s
OC 40/V14 m/s
O d. None of the given options
e.
-10 m/s
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