Ablock is sliding without friction down a ramp along with a ring, a disc and a solid sphere. the height of the ramp is 50 meters. what is the speed of the ring? m/s tries 0/2 what is the speed of the disc? m/s tries 0/2 what is the speed of the solid sphere? m/s tries 0/2 what is the speed of the block at the bottom of the ramp? m/s

Explanation:

All the objects are sliding and going down the ramp under the influence of gravity . So they all  will have the same velocity as a freely falling body under gravity have  . It is so because gravitational field is conservative .

So velocity of all of them ( it will not depend on mass )

=

= 31.3 m/s

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

im guessing the west of station b