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A proton, moving with a velocity of viî, collides elastically with another proton that is initially...

A proton, moving with a velocity of viî, collides elastically with another proton that is initially at rest. Assuming that after the collision the speed of the initially moving proton is 0.60 times the speed of the proton initially at rest, find the following.

(a) the speed of each proton after the collision in terms of vi

initially moving proton
Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. ✕ vi
initially at rest proton
Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. ✕ vi


(b) the direction of the velocity vectors after the collision (assume that the initially moving proton scatters toward the positive y direction)

initially moving proton ° relative to the +x direction
initially at rest proton ° relative to the +x direction
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