Normal 0 false false false EN-US X-NONE X-NONE A thin hollow sphere of mass ‘m’ is completely filled with a liquid of mass ‘m’. When the sphere rolls with a velocity ‘v’, kinetic energy of the system is (neglect friction): Normal 0 false false false EN-US X-NONE X-NONE The maximum tension a rope can withstand is 60 kg wt. The ration of maximum acceleration with which two boys of masses 20 kg and 30 kg can climb up the rope ate the same time is:

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A thin hollow sphere of mass ‘m’ is completely filled with a liquid of mass ‘m’. When the sphere rolls with a velocity ‘v’, kinetic energy of the system is (neglect friction):

The maximum tension a rope can withstand is 60 kg wt. The ration of maximum acceleration with which two boys of masses 20 kg and 30 kg can climb up the rope ate the same time is:

venkata sreekanth , 14 Years ago

Grade 11

2 Answers

MADDALA NAGENDRAKUMAR

For 20 kg body FBD equation is

W1=T+m1(g+a1)

200=60+20(10+a1)

200-200=60+20a1

a1=60/20=3

For 30kg body FBD Equation is

W2=T+m2(g+a2)

300=60+30(10+a2)

300-300=60+30a2

a2=60/30=2

a1:a2=3:2

So finally the ratio between a1 and a2 is

(a1:a2

Last Activity: 6 Years ago

MADDALA NAGENDRAKUMAR

FOR 20KG BOY FBD EQUATION IS

M1a1=T-W1

20a1=600-200

20a1=400

a1=20

FOR 30KG BOY FBD EQUATION IS

30a2=T-W2

30a2=600-300

30a2=300

a2=10

the ratio of a1 and a2 is

a1:a2=20:10

a1:a2=2:1

Last Activity: 6 Years ago

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Mechanics> these two topics are rotatory motion and ...

venkata sreekanth , 14 Years ago

MADDALA NAGENDRAKUMAR

MADDALA NAGENDRAKUMAR

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