If m is the mass of a body and E its K.E..then its linear momentum is(

1.	If m is the mass of a body and E its K.E..then its linear momentum is(A) \(m\sqrt{E}\)(B) \(2\sqrt{m}E\)(C) \(\sqrt{m}E\)(D) \(\sqrt{2mE}\)
Answer» Correct option is: (D) \(\sqrt{2mE}\) \(E = \frac{1}{2} mv^2\) \(v = \sqrt \frac{2E}{m}\) \(P = mv\) \(P = m \sqrt \frac{2E}{m}\) \(P = \sqrt{2mE}\) Correct option is: (D) \(\sqrt{2mE}\)

If m is the mass of a body and E its K.E..then its linear momentum is(A) \(m\sqrt{E}\)(B) \(2\sqrt{m}E\)(C) \(\sqrt{m}E\)(D) \(\sqrt{2mE}\)

Answer»

Correct option is: (D) \(\sqrt{2mE}\)

\(E = \frac{1}{2} mv^2\)

\(v = \sqrt \frac{2E}{m}\)

\(P = mv\)

\(P = m \sqrt \frac{2E}{m}\)

\(P = \sqrt{2mE}\)

Correct option is: (D) \(\sqrt{2mE}\)