A solid sphere and sperical shell of same mass m and same radius R are given charges +Q and -Q. Both spheres are kept on rough surface where friction is sufficient to avoid sliding. Initial seperation between spheres is 10 R. If m = 126 kg,
Q2=23×10−9C2 and R = 1m.
(A) |
Speed of solid sphere just before collision is |
1) 35 m/s |
(B) |
Speed of spherical shell just before collision is |
2) 0 m/s2 |
(C) |
Speed of center of mass just before collision is |
3) 57 m/s |
(D) |
Acceleration of center of mass |
4) Towards left |
|
|
5) Towards right |