Question

12. The resultant of two equal velocities acting at right angle to each other is
141.4 m/s. find the magnitude of each velocity
10 m/s
(ii) 100 m/s
(iii) 0.1 m/s
(iv) 50 m/s​

Answer 1

Answer:

100 m/s is the answer

Explanation:

Given, F1 = F2 = F (say)

θ=90°

R=141.4dyne

Resultant force, R= whole root F²1 + F²2b+ 2F¹ F²cosθ

141.4dyne= whole root F²+F²+2F²cos90°

141.4dyne= root 2F

F=141.4/root2=999.84≈100.0dyne (by rounding off)

F=100

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