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Neporo4naja [7]
3 years ago
15

DB is a diameter of circle C. KAis a tangent line to circle C at point A.

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
5 0

Answer:

BAD is 67°

ABC is 90°

Step-by-step explanation:

ABC is 90 due to the diameter rule in circle theorem

If you need any other help alert me

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3 years ago
A ball is thrown with an initial velocity of 70 km per second, at an angle  of 35° with the horizontal. Find the vertical and ho
oksian1 [2.3K]

Answer:

i. The horizontal component of the ball = 15.8

ii. The vertical component of the ball = 11.2

Step-by-step explanation:

A thrown ball is an example of a projectile, whose motion can be explained with respect to both horizontal and vertical components.

Horizontal component of the ball = U Cos θ

Vertical component of the ball = U Sin θ

where U is the initial velocity of the ball, and θ is the angle of projection.

Thus for the given question,

U = 70 km/hr (19.44 m/s)

θ = 35°

So that;

i. The horizontal component of the ball = 19.44 Cos 35°

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The horizontal component of the ball = 15.8.

ii. The vertical component of the ball = 19.44 Sin 35°

                                                = 19.44 x 0.5736

                                                = 11.151

The vertical component of the ball = 11.2

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3 years ago
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