Physics

Physics

Problem

4. Mass

M_{1}

is moving with speed v toward stationary mass

M_{2}

. The speed of the center of mass of the system is (A)

\frac{M_{1}}{M_{2}} v

(B)

\left(1+\frac{M_{1}}{M_{2}}\right) v

(C)

\left(1+\frac{M_{2}}{M_{1}}\right) v

(D)

\left(1-\frac{M_{1}}{M_{2}}\right) v

(E)

\left(\frac{M_{1}}{M_{1}+M_{2}}\right) v

(A)

\frac{M_{1}}{M_{2}} v

(B)

\left(1+\frac{M_{1}}{M_{2}}\right) v

(C)

\left(1+\frac{M_{2}}{M_{1}}\right) v

(D)

\left(1-\frac{M_{1}}{M_{2}}\right) v

(E)

\left(\frac{M_{1}}{M_{1}+M_{2}}\right) v

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