2. A common situation is for an object to be sitting or moving on a sloped surfa
ID: 3280817 • Letter: 2
Question
2. A common situation is for an object to be sitting or moving on a sloped surface (a hill a ramp, whatever). In this situation the sloped surface will exert forces on the object. The complicated force that the surface may exert is friction. Again, this question is largely concerned with thinking about friction. Sometimes other forces will also be acting on the object, such as forces exerted by a person pushing or pulling on the object. For each of the following situations, come up with a plausible real-life example which fits the description. Briefly describe the example and draw the free body diagram of the object. Every one of the situations described below is possible, though some of them might take some thought to come up with a real-life example You may fin the simulation The Ramp", useful for thinking about this. It is on moodle. It is a Java applet, so you wil nced a working Java Runtime Environment (JRE) to run it. Almost all computers have one these days but sometimes it can take a bit of fiddling to get it working. If youExplanation / Answer
a) on the object gravitational force componnet down the incline will counterbalance frictional force(static).
b)by imparting some speed to the object at the bottom of incline the block slides up the incline.
c)when the applied force up the incline is more than the gravitational force component down the incline then there is atendency of the object to slide up the incline.As the object is still at rest with respect to incline so frictional force exerted by incline is down the incline.
d)when grvitational force component down the slope is more than sum of applied force and limiting static friction then the block slides down the incline.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.