Processing math: 100%
Home / Aptitude Tests / Mathematics / Make F the subject o...
Make F the subject of the formula t = \(\sqrt{\frac{v}{\frac...

Make F the subject of the formula t = v1f+1g

A.

gvt2gt2

B.

gt2gvt2

C.

v1t21g

D.

gvt2g

Correct answer is B

t = v1f+1g

t2 = v1f+1g

= vfgftg

1f+1g = vt2

= (g + f)t2 = vfg

gt2 = vfg - ft2

gt2 = f(vg - t2)

f = gt2gvt2