If the nose of the car is initially at position with an initial velocity and no applied acceleration or braking force, graph the velocity of the car for positive time.
A car rolling on a hill can be modeled as shown in Figure E-25. The excitation is the force for which a positive value represents accelerating the car forward with the motor and a negative value represents slowing the car by braking action. As it rolls, the car experiences drag due to various frictional phenomena that can be approximately modeled by a coefficient which multiplies the car’s velocity to produce a force which tends to slow the car when it moves in either direction. The mass of the car is m and gravity acts on it at all times tending to make it roll down the hill in the absence of other forces. Let the mass m of the car be 1000 kg, let the friction coefficient be and let the angle be .
 - Microsoft Word.png)
You might also like to view...
Answering "strongly agree" to which of the following statements will increase your score on the optimism quiz presented in your text?
a. If something can go wrong for me, it will. b. I rarely count on good things happening to me. c. I hardly ever expect things to go my way. d. In uncertain times, I usually expect the best. e. I find it difficult to relax.
Sam has persistent and distressing thoughts of germs; he cannot eat without washing his hands three times before and three times after every meal. Although his hands are raw from the washings, he is overwhelmed with anxiety if he doesn't wash using this method. Sam's problems illustrate ____
a. posttraumatic stress disorder b. obsessive-compulsive disorder c. agoraphobia d. generalized anxiety disorder
Andy was in a car accident and hit his head. Later, he had trouble hearing. It's probable that he sustained damage to the __________ lobe
a. temporal c. occipital b. parietal d. frontal
According to Vygotsky, children speak to themselves
A) for self-guidance. B) because they are egocentric. C) for the pleasure of hearing language. D) because they are lonely.