How can an unbalanced force affect the motion of an object.

A single force, or an unbalanced group of forces, must cause acceleration. That means that the object's speed, or the direction of its motion, or both, will change.

"Acceleration" means speed up, slow down, or turn.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

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