Sphere X, of mass 2 kg, is moving to the right at 10m/s. Sphere Y, of mass 4 kg, is moving to the left at 10m/s. The two spheres collide head-on. The magnitude of the impulse of X on Y is: A. twice the magnitude of the impulse of Y on X B. half the magnitude of the impulse of Y on X C. one-fourth the magnitude of the impulse of Y on X D. four times the magnitude of the impulse of Y on X E. the same as the magnitude of the impulse of Y on X

E. the same as the magnitude of the impulse of Y on X

Explanation:

Impulse is product of force and time duration of action of force . When two objects collide , two equal forces emerge at the point of contact in opposite direction . Both remain active for a fraction of a second . Since these two forces are equal and act for same period of time , the pulse of these forces two are same .

so when X collides with Y , impulse on each of them are equal , no matter what their masses or velocities are.

answer: (431,2)

step-by-step explanation:

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach