The balls, having linear momenta →p1=p^i and →p2=−p^i, undergo a collision in free space. There is no extemal force acting on the balls. Let →p1 and →p2 be their final momenta. The following option(s) is (are) NOT ALLOWED for any non-zero value of p,a1,a2,b1,b2,c1 and c2.
→p1=a1^i+b1^j+c1^k; →p2=a2i+b2^j
→p1=c1^k; →p2=c2^k
→p1=a1i+b1^j+c1^k; →p2=a2^i+b2^j−c1^k
→p1=a1^i+b1^j; →p2=a2i+b1^j
A
→p1=c1^k; →p2=c2^k
B
→p1=a1i+b1^j+c1^k; →p2=a2^i+b2^j−c1^k
C
→p1=a1^i+b1^j; →p2=a2i+b1^j
D
→p1=a1^i+b1^j+c1^k; →p2=a2i+b2^j
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Solution
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→p2=a2i+b2^j D→p1=a1^i+b1^j;
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