Perception is thus part of all human observation. This aspect of what is involved in observation is crucial to any efforts to use it as a method of. research. EXERCISE 1. Write down what kinds of factors may affect your perception of something you observe.
A GMC truck with a standard cab but a long bed is more than 18 1/2 feet in total length. A truck with a double cab and a regular bed is slightly more than 19 feet long. If a pickup has a larger crew cab with a standard box, the vehicle is about 20 feet long. However, if the truck has a crew cab with a short box, the entire length is a little more than 19 feet.
2. A truck on a straight road starts from rest and accelerates at 2.0 m/s 2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at a constant speed until the brakes are applied, stopping the car in a uniform manner in an additional 5.0 s. How long is the truck in motion and what is its average velocity during the motion? 3.