Answer all the questions:

1. The dog has an initial velocity of 10 m/s [N]. He sees a cat and veers right to a final velocity of 10 m/s [E] in just 2.5s. Determine his average acceleration.

2. The cat has an initial velocity of 5 m/s [NE]. He experiences an average acceleration of 3.0 m/s2 [E 30o S]. Determine his displacement after 4.0 s.

3. The fish is initially moving at 36 km/h [NE] and ends up at 54 km/h [S] after 5 s. Determine its average acceleration.