Question

Work out the value of s

S= ut + ½ at^2
u= 10 a=-2 t=1/2
Work out the value of s.

Answer 1

s =
`(19)/(4)`

Explanation:

substitute the given values into the equation

s = (10 ×
`(1)/(2)` ) + (
`(1)/(2)` × - 2 × (
`(1)/(2)` )² )

= 5 + (- 1 ×
`(1)/(4)` )

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

= 4
`(3)/(4)`

=
`(19)/(4)`