Need help with1-5

Unit 1: 1. A car makes a trip consisting of three parts. In part 1 the car travels at 31m/s north for 40km. Then the car travels 25km south in 15 minutes. In the last part of the trip the car travels at 21m/s north for 32minutes. A) what is the average speed of the car? 26m/s B) what is the average velocity of the car? 13m/s North 2. What is the overall displacement of the following vectors, 20.5m @32 E of N and 41m @, 70' S of E? 33m @ 50 E of S 3. A plane accelerates down a runway from rest at 12.5m/s . How fast is it going after travelling 300m? 86.6m/s 4. A stone is thrown horizontally off a 125m cliff. It hits the ground 50m from the base of the cliff. At what velocity was it thrown? 10m/s 5. A football is kicked at a velocity of 19.0m/s at an angle of 410 above horizontal. A) how far horizontally will it travel? 36m B) what is the maximum height it will reach? 7.9m