The time to move along the plane is 1.2times the time to fall vertically . What the angle of plane with the horizontal
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Explanation:
Let height be h and the slope be θ
⇒l=
sinθ
h
Component of g along the inclined =gsinθ
∴l=
2
1
gsinθ⋅t
2
sinθ
h
=
2
1
gsinθ⋅t
2
⇒t=
g
2h
×
sinθ
1
For second block:
h=
2
1
gt
′2
t
′
=
g
2h
t
′
=
2
t
Therefore, on simplifying ,
2=
sinθ
1
sinθ=
2
1
⇒θ=
6
π
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