A block of ice is sliding down a ramp of slope 40° to the horizontal. What is the rate of acceleration of the block? Assume the force of friction is not significant. 4.9 m/s2
6.3 m/s2
7.1 m/s2
9.8 m/s2

answer: lol haha i'm in flvs too!

but to answer question number 1 would be a.

and number 2 would be c.

idk man good luck man

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.