khan academy baboon

Question

A baboon steals an apple and runs to a nearby boulder 10.0m to its left. The baboon reaches the boulder in 1.0s with a constant acceleration of 20.0m/s^2 leftward. What was the baboons initial velocity when it started running to the boulder?

Answer 1

distance = (1/2)at² + v₀t

10 = (1/2)(20)(1²) + v₀(1)

Solve for v₀, the initial velocity.