2015

Mathematics

POST UTME

if $s = \frac{1}{2}$ (u + v)t , make v the subject of the formula

A. (2s - ut)/t

B. (ut - 2s)/t

C. (ut + 2s)/t

D. (2s - u)/t

Correct Answer: (2s - ut)/t

Explanation

S = 1\2(u + v)t
cross multiply
2s = (u + v)t
divide by t
$\frac{2S}{t} = u + v$
$\frac{2S}{t} - u = v$
$V = \frac{2s - ut}{t}$

S = 1\2(u + v)t

cross multiply

2s = (u + v)t

divide by t

$\frac{2S}{t} = u + v$

$\frac{2S}{t} - u = v$

$V = \frac{2s - ut}{t}$

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2015

Mathematics

POST UTME

if ﻿s=12s = \frac{1}{2}s=21​﻿ (u + v)t , make v the subject of the formula

A.

(2s - ut)/t

B.

(ut - 2s)/t

C.

(ut + 2s)/t

D.

(2s - u)/t

Correct Answer: (2s - ut)/t

Explanation

S = 1\2(u + v)tcross multiply2s = (u + v)tdivide by t ﻿2St=u+v\frac{2S}{t} = u + vt2S​=u+v﻿ ﻿2St−u=v\frac{2S}{t} - u = vt2S​−u=v﻿ ﻿V=2s−uttV = \frac{2s - ut}{t}V=t2s−ut​﻿

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if $s = \frac{1}{2}$ (u + v)t , make v the subject of the formula

S = 1\2(u + v)t
cross multiply
2s = (u + v)t
divide by t
$\frac{2S}{t} = u + v$
$\frac{2S}{t} - u = v$
$V = \frac{2s - ut}{t}$