Question

Please can someone help me with this question?

Answer 1

a) Equation B is correct

b) u = 5.2 m

Explanation:

Trigonometry ratios:

`\sf Sin \ \theta = (opposite \ side \ \angle64^\circ)/(hypotenuse)\\\\\\Sin \ 64^\circ = (u)/(5.8)\\\\\\0.8987 = (u)/(5.8)`

0.8987 * 5.8 = u

u = 5.2 m