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Grade 8 Science
Quarter 1

1. In a tug war, a fat man pulls a force of 120 N on a side, and a lean man pulls with 80 N on the other side. Determine the net force.
Solutions:

Given:
Equation:

2. A toy car is at rest, and a force of 90 N is applied to it. If the frictional force of 20 N, determine the net force.
Solutions:

Given:
Equation: