1. A skateboarder that is initially moving at 0.5 m/s begins to accelerate forward at a constant rate of 0.08 m/s². How long does it take the skateboarder to move 5 m? How fast is the skateboarder moving just as it traveled 5 m? 2. Starting from rest, a car travels down a 1/2 mile road in 25s with constant acceleration. What is the velocity of the car when it reaches 1/2 mile?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )