Question

S = ut + ½ at² u = 10 a = -2 t= ½ what would s equate to?

Answer 1

s = 6 1/2

Explanation:

Answer 2

s =
`(19)/(4)`

Explanation:

Substitute the given values for u, a and t into the formula

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

= 5 + (- 1 ×
`(1)/(4)` )

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

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

=
`(20)/(4)` -
`(1)/(4)`

=
`(19)/(4)` ( = 4.75 )