two particles P an Q move on a line of greatest slope of a smooth inclined plane. the particles start at the same instant and from the same point, each with speed 1.3 m/s. initially P moves down the plane and Q moves up the plane. the distance between the particles t seconds after they start to move is d metres.
1. show that d= 2.6t
when t=2.5 the difference in the vertical height of the particles is 1.6m. find:
2. the acceleration of the particles down the plane,
3. the distance travelled by P when Q is at its highest point.

Question

two particles P an Q move on a line of greatest slope of a smooth inclined plane. the particles start at the same instant and from the same point, each with speed 1.3 m/s. initially P moves down the plane and Q moves up the plane. the distance between the particles t seconds after they start to move is d metres.
1. show that d= 2.6t
when t=2.5 the difference in the vertical height of the particles is 1.6m. find:
2. the acceleration of the particles down the plane,
3. the distance travelled by P when Q is at its highest point.

anonymous · Answer

this can be done by applying maths. you just need to use this physical concept: v=s/t
do you need further help?

vincent-lyon.fr · Answer

What is the angle of the plane to the horizontal?

anonymous · Answer

the angle is not given

anonymous · Answer

note that it's speed. the angle isn't really need. basically it's |dw:1354616449530:dw|

anonymous · Answer

speed of approach * e = speed of separation?

anonymous · Answer

but what is meant by greatest slope?