An object is projected up with initial velocity v0 on an inclined plane of angle
ID: 1691391 • Letter: A
Question
An object is projected up with initial velocity v0 on an inclined plane of angle a with the horizontal. It is subjected to a drag force FD=-cv. a. how far will the mass travel before reaching its highest point? b.What will be the speed of the mass when it returns to its original point?An object is projected up with initial velocity v0 on an inclined plane of angle a with the horizontal. It is subjected to a drag force FD=-cv. a. how far will the mass travel before reaching its highest point? b.What will be the speed of the mass when it returns to its original point?
Explanation / Answer
a) you know that at the highest point, the final velocity=zero, so you can use this equation to solve for the distance. Vf=Vi + at Vf=0 Vi=v0 a=-9.8m/s2 t=?? 0=v0+(-9.8)t v0/(9.8)=t b) the speed of the mass when it returns to its original point will always be the same as its initial speed. So it's ending velocity will also be v0, but in the negative direction so it will be -v0. [I could answer this better if you have a value for v0, or if you can describe the variables in FD=-cv]