Question

5. If v=u+at, find:
a) u when a=2,t=3 and v= 10

b) t when a=4, u=5 and v=29

Answer 1

`\text{Hello there!}\\\\\text{Plug in and solve:}\\\\1. \\\\10=u+2(3)\\\\10=u+6\\\\\boxed{4=u}\\\\2.\\\\29=5+4(t)\\\\24=4(t)\\\\\text{Divide by 4}\\\\\boxed{6=t}`

Answer 2

Explanation:

(a) Answer below

`v = u + at`

`(10) = u + (2)(3)`

`10 = u + 6`

`u = 4`

(b) Answer below

`v = u + at`

`(29) = (5) + (4)t`

`29 = 5 + 4t`

`24 = 4t`

`t = 6`