Question: A proton initially has v = 4.0i 2.0j + 3.0k and then 4 later has v = 2.0i 2.0j + 5.0k (in meters

A proton initially has v = 4.0i – 2.0j + 3.0k and then 4 later has v = –2.0i – 2.0j + 5.0k (in meters per second). For that 4.0 s, what are?

(a) The proton's average acceleration aavg in unit-vector notation,

(b) The magnitude of aavg and

(c) The angle between aavg and the positive direction of the x axis?

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