1- You walk from your house to the store 1.0 km in 25 minutes, then spend 10 minutes in the store. On your way home, you stop after 15 minutes of walking to your friend's house, which is located 0.24 km from the store. Calculate: Your displacement. The average speed of your entire walk. The average velocity of your whole walk. A train starts from rest and accelerates uniformly until it has traveled 5.6 km and acquired a velocity of 42 mfs. Then, the train moves at a constant velocity of 42 mfs for 420 s. The train then slows down uniformly at 0.065 ['11st until it is brought to a halt. Calculate: The average acceleration between the three parts of the trajectory of the train. The total distance traveled by train. Represent the train trajectory in an x vs. t graph. After solving a difcult physics problem, an excited student throws his book straight up. It leaves his hand at 3.9 mfs from 1.5 m above the ground Calculate the maximum height reached by the book. How much time does it take until the book hits the oor? What's its velocity, then