x momentum conserved, y momentum conserved x momentum conserved, y momentum not

Question

x momentum conserved, y momentum conserved

x momentum conserved, y momentum not conserved

x momentum not conserved, y momentum conserved

x momentum not conserved, y momentum not conserved

SHOW HINT

x momentum conserved, y momentum conserved

x momentum conserved, y momentum not conserved

x momentum not conserved, y momentum conserved

x momentum not conserved, y momentum not conserved

SHOW HINT

x momentum conserved, y momentum conserved

x momentum conserved, y momentum not conserved

x momentum not conserved, y momentum conserved

x momentum not conserved, y momentum not conserved

The free-body diagrams in the figure give, from overhead views, the horizontal forces acting on three boxes of chocolates as the boxes move over a frictionless confectioner’s counter. For each box, is its linear momentum conserved along the x axis and the y axis?

Explanation / Answer

a)

In x direction net force is zero hence no impulse in x direction hence momentum in x direction will be conserved.

In y direction net force is there so impulse will be there over time, hence momentum won't conserved.

b)

In x direction net force is zero hence no impulse in x direction hence momentum in x direction will be conserved.

In y direction net force is there so impulse will be there over time, hence momentum won't conserved.

c)

In x direction net force is there so impulse will be there over time, hence momentum won't conserved.

In y direction net force is zero hence no impulse in y direction hence momentum in y direction will be conserved.

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