Grade 12th passMechanics

a particle is projected horizontally with speed u from point a which is 10m above the ground .if the particle hits the inclined plane perpendicularly at point B

Question image for a particle is projected horizontally with speed u

dskkiran

10 Years agoGrade 12th pass

1 Answer

Vikas TU

10 Years ago

Apply eqn. of motions.

x = 0 + 0.5gt^2 {let it covered x distance after hitting the incline.}

in horztl.

10 – x = u*t..............(2)

{from geomtery}

Now we need one more eqn.

Displacement OB = root2*(10-x)

Now,

Final velocity,

vx = u in x direcn

and

vy = gt in y direcn.

v = root(u^2 + (gt)^2)

Now,

v.(OB) = 0 (Dot Product is zero).

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a particle is projected horizontally with speed u from point a which is 10m above the ground .if the particle hits the inclined plane perpendicularly at point B

dskkiran

1 Answer

Vikas TU

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