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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Projectile Motion