Flag Mechanics> Two identical particles A and B are attac...
question mark

Two identical particles A and B are attached to a string of length 2l A to middle and B to one of the ends. The string is whirled in a horizontal circle , with the end o fixed . If the kinetic energy of B relative to A is E , then the absolute kinetic energies of A and B are E and 2E E and 4 EE and 3EE and 5E

Pp , 6 Years ago
Grade 11
anser 1 Answers
Arun

Last Activity: 6 Years ago

Since A and B are rotating with the same angular velocity,
The kinetic energies are
Va = wl and Vb = 2wl
 
E = ½ m (Vb2 – Va2) = E
 
hence Ea =E
 
and Eb = 4E
 
hence option 2 is correct.

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...