As shown in the figure, a man throws a ball with an initial velocity of v=25m/s making an angle of 0 = 37° with the horizontal. If it is known that, the ball hits on the inclined surface after 4 seconds at point B, (a) Find the angle a of the inclined surface. (b) Find the final velocity of the ball, as it hits on the inclined plane. (c) Find the angle between the inclined surface and A the final velocity at the instant of contact. B

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Chapter1: Units, Trigonometry. And Vectors
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As shown in the figure, a man throws a ball with an initial velocity of v=25m/s making an angle of ? = 37° with the horizontal. If it is known that, the ball hits on the inclined surface after 4 seconds at point B,
(a) Find the angle ? of the inclined surface.
(b) Find the final velocity of the ball, as it hits on the inclined plane.
(c) Find the angle between the inclined surface and the final velocity at the instant of contact.

As shown in the figure, a man throws a ball with an
initial velocity of v=25m/s making an angle of 0 =
37° with the horizontal. If it is known that, the ball
hits on the inclined surface after 4 seconds at point B,
(a) Find the angle a of the inclined surface.
(b) Find the final velocity of the ball, as it hits on the
inclined plane.
(c) Find the angle between the inclined surface and
the final velocity at the instant of contact.
A
B
Transcribed Image Text:As shown in the figure, a man throws a ball with an initial velocity of v=25m/s making an angle of 0 = 37° with the horizontal. If it is known that, the ball hits on the inclined surface after 4 seconds at point B, (a) Find the angle a of the inclined surface. (b) Find the final velocity of the ball, as it hits on the inclined plane. (c) Find the angle between the inclined surface and the final velocity at the instant of contact. A B
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