Three carts move along a straight track

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

Three carts move along a straight track. P:

2\,\text{kg}

at

4\,\text{m/s}

Q:

4\,\text{kg}

at

1.5\,\text{m/s}

R:

1\,\text{kg}

at

9\,\text{m/s}

Choose the correct ranking of their momenta from highest to lowest. (a)

Q > P > R

(b)

R > Q > P

(c)

R > P > Q

(d)

Q > R > P

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