Question

Given v^2 = u^2 − 2as. Solve for u, when v = 10, a = 5 and s = 2.

Answer 1

u ≈ 11

Explanation:

10² = u² - 2(5)(2)

100 = u² - 20

120 = u²

u =
`√(120)`

u =
`√(4)`
`√(30)` = 2
`√(30)` which is 10.95