Been trying to figure out how to do these. Help please! -A ball is thrown at an

Question

Been trying to figure out how to do these. Help please!

-A ball is thrown at an angle of 64.5 degree above the horizontal at a speed of 8.38 m/s. What is the horizontal component of the ball's velocity?
(Define positive y to point up.)

-A ball is thrown at an angle of 23.9 degree above the horizontal at a speed of 7.99 m/s. What is the vertical component of the ball's velocity?
(Define positive y to point up.)

-A baseball is thrown with 26.6 m/s at an angle of 42.1 degree above the horizontal. It is caught at the same height by another player some distance away.

What is the speed of the ball, just before it is caught? (Ignore air drag.)

-A roach that runs for its life because you try to hit it with your physics book runs off the horizontal tabletop with a speed of 0.749 m/s. It strikes the floor a horizontal distance 0.399 m away from the edge of the table. Ignore air resistance.

What will be the vertical component of the roach's velocity just before it hits the floor?

Explanation / Answer

-A ball is thrown at an angle of 64.5 degree above the horizontal at a speed of 8.38 m/s. What is the horizontal component of the ball's velocity?
(Define positive y to point up.)

Vx = 8.38cos(64.5) = 3.608 m/s

-A ball is thrown at an angle of 23.9 degree above the horizontal at a speed of 7.99 m/s. What is the vertical component of the ball's velocity?
(Define positive y to point up.)

Vy = 7.99sin(23.9) = 3.237 m/s

-A baseball is thrown with 26.6 m/s at an angle of 42.1 degree above the horizontal. It is caught at the same height by another player some distance away.

What is the speed of the ball, just before it is caught? (Ignore air drag.)

-A roach that runs for its life because you try to hit it with your physics bo

The speed will be the same as when it was launched = 26.6 m/s (if it's caught at the same height)

ok runs off the horizontal tabletop with a speed of 0.749 m/s. It strikes the floor a horizontal distance 0.399 m away from the edge of the table. Ignore air resistance.

What will be the vertical component of the roach's velocity just before it hits the floor?

I have to run, I'll come finish this problem later.

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