Forces of magnitudes 20 N and 10 N are applied on a box in opposite directions. The magnitude of net force is:
A
10 N
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B
5 N
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C
15 N
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D
30 N
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Solution
The correct option is A 10 N As the forces are acting in opposite directions, net force is given by difference in magnitudes of the two forces. Hence, net force = 20 N - 10 N = 10 N.