Calculate the average acceleration of a car and a lizard and the final velocity of the Ferrari.
1. A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find out the car's average acceleration.
2. A lizard accelerates from 2m/s to 10m/s in 4 seconds. What is the lizard's average acceleration?
3. If a Ferrari, with an initial velocity of 10m/s, accelerates at a rate of 50m/s/s for 3 seconds, what will its final velocity be?