3 years ago

Julie and Ashwin were doing an experiment in the classroom. They

1 answer:

4 0

B, he has to apply less force to lift the box because the mass has decreased.

The equation for force is
F=ma

If m is decreased by half, then f decreases as well. It takes less force to push a lighter object across the floor.

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Two equal mass carts approach each other with velocities equal in magnitude but opposite in direction. Friction can be neglected

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Answer:

Explanation:

Since momentum is given by:

$\vec{p}=m.\vec{v}$

Therefore momentum is a vector quantity in the direction of velocity.

Inelastic collision is the type of collision in which the masses combine after collision and start moving in the direction of the greater momentum but here in this case we have the momentum equal and opposite in direction.

<u>This case can be described mathematically as:</u>

$m_1.\vec{v_1}=m_2.\vec{v_2}$