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Author Question: In an elastic collision between two bodies of mass m1 and m2, with m2 initially at rest, mass 1 ... (Read 188 times)

sc00by25

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on: Aug 1, 2020
In an elastic collision between two bodies of mass m1 and m2, with m2 initially at rest, mass 1 moves off at angle θ relative to the direction of its initial velocity and mass 2 at angle φ. An exam paper shows the equations below:

m1v1i
0

= m1v1f cosθ + m2v2f sinφ
= m1v1f sinθ + m2v2f cosφ



What error(s) has the student made?


◦
In the first equation, m2v2f sinφ should be m2v2f cosφ.

◦
In the second equation, m2v2f cosφ should be m2v2f sinφ.

◦
In the second equation, the plus sign between the terms on the right should be a minus sign.

◦
All of the errors listed above.

◦
Only errors (a) and (b) above.
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Marked as best answer by sc00by25 on Aug 1, 2020

softEldritch

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Reply #1 on: Aug 1, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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sc00by25

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Reply 2 on: Aug 1, 2020
Wow, this really help

bigcheese9

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Reply 3 on: Yesterday
Excellent

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