Question

Paragraph for Q. Nos. 30 to 32
A particle is projected horizontally with speed u from point
A, which is 10 m above the ground. If the particle hits the
inclined plane perpendicularly at point B. (g = 10 m/s?]
Au
B.
10 m
545°
30. Find horizontal speed with which the particle was
projected.
20
20
(1)
(2) 20
3
3
3
2
(3) U = 10
3
(4) 10,12
3
31. Find the length OB along the inclined plane.
(1)
10
13
(2) 2013
(4)
2012
3
20
(3)
13
32. Speed at point B will be
3
(1)
20
13
(2) 2013
(3)
10
13
(4) 10/3
​

Answer 1

Answer:

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