Question

Forces F1 and F2 act on a point mass in two mutually perpendicular directions. The resultant force on the point mass will be:
(a) F1+F2 (b) F1-F2 (c) √F1^2+F2^2
(d) F1^2+F2^2

Answer 1

Answer:c)√F1^2+F2^2

Explanation:√F1^2+F2^2+2×F1×F2×Cos 90°

= √F1^2+F2^2+2×F1×F2×0

= √F1^2+F2^2

Answer 2

Explanation:

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