Lesson 2 Review English assignment PDF

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Section 2 Review 16. A car’s velocity around a track at a constant speed would have a changing velocity because even though the car is at a constant speed, the velocity depends on the direction ,which means even if the car is at constant speed, the velocity will still change due to the car turning and changing direction around the track. 17. Streets and highways have speed limits rather than velocity limits because velocity includes the speed of an object and it’s direction of motion while speed is the rate of change in position, meaning that objects moving around should have a speed limit in order to control the velocity of the transportation movements. 18. 1. Yes, velocity included 2. Yes, the velocity included 3. Yes, the speed included 4. Yes, the speed included 19. The motion of me walking to the back of the bus would be the same as me walking on the ground but the difference is just that for the bus motion it feels like I'm moving faster and it's like moving forward but in the same time since i’m going to the back of the bus, it's like going backwards of the bus’s velocity but for the ground I can feel my motion steps going forward without any velocity decreasing. 20. 400 (kg x m/s) 21. Elephant = 693 (kg x m/s) Dolphin = 520 (kg x m/s) The elephant have (173 kg x m/s) momentum than the dolphin...