Question

Consider a disc rolling with out slipping on a horizontal surface at a speed V as shown in figure.
1) the speed of the particle at A is 2V.
2) the speed of the particle and B,C and D is equal to V
3) The speed of C is zero and the speed of B is √2 V
4) the speed of 0 is less then the speed of V which is the correct answer?

Answer 1

$21 < \\ \\ \sqrt[21 \sqrt{ \leqslant sth \: = \gamma \gamma} ]{?} 85(52)6$