Question

V=u+at u=2 a=-5 t=1/2 work out the value of v

Answer 1

-
`(1)/(2)`

Explanation:

Substitute the given values into the equation and evaluate

v = 2 + (- 5 ×
`(1)/(2)`)

= 2 -
`(5)/(2)`

=
`(4)/(2)` -
`(5)/(2)` = -
`(1)/(2)`

Answer 2

Answer:
`\bold{v=-(1)/(2)}`

Explanation:

v = u + at

Substitute u = 2, a = -5 , t =
`(1)/(2)`

`v=(2)+(-5)((1)/(2))\\\\\\.\ =2 - (5)/(2)\\\\\\.\ =2\bigg((2)/(2)\bigg)-(5)/(2)\qquad \text{need a common denominator to add fractions}\\\\\\.\ =(4)/(2)-(5)/(2)\\\\\\.\ =\boxed{-(1)/(2)}`