Question

1. (a) The quantities_______ _______remain constant in elastic collision.
(b) Two right angled vectors of magnitude 7 units and 24 unitscombine; the magnitude of their resultant is________​

Answer 1

Answer:

1.(a) Linear momentum and Kinetic energy

(b)Magnitude of Resultant =√F1^2+F2^2+2F1F2Costheta=√7^2+24^2+2(7) (24) Cos 90degree=√49+576+336=√961=31

Explanation:

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