The roof of a two-story house makes an angle of 30°with the horizontal. a ball rollingdown the roof rolls off the edge at a speed of 5.0m/s. the distance to the ground fromthat point is 7.0 m. (a) how long is theball in the air? (b) how far from thebase of the house does it land? (c) what is its speedand direction just before landing?

Answer

angle made by the horizontal = 30°

velocity  =  5 m/s

distance = 7 m

Vertical component (V y) = 5 sin (30°) = 2.5 m/s

Horizontal component(V x) = 5 cos (30° ) = 4.33 m/s

Applying

t = 0.967 s

b) Distance from base

        =

        =

        = 2.42 m

c) You can find final vertical velocity

V= u + gt

V = 9.8 × 0.967

v = 9.48 m/s

Final velocity =

v = 8.433 m/s

Final angle

θ = 65.41°

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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joke:

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