Saturday

October 25, 2014

October 25, 2014

Posted by **Kelsey** on Tuesday, March 13, 2012 at 1:23am.

A)What is the speed of the ball just before it strikes the ground?

B)What is the answer for part A) if the initial velocity was directed at an angle of 50.9 degrees below the horizontal?

- Physics -
**drwls**, Tuesday, March 13, 2012 at 1:53amA) The horizontal velocity component will remain

Vx = 13.1 cos 50.9

and the vertical component will increase so that

Vy^2 - (13.1 sin 50.9)^2 = 2 g H

where H is the height of the building.

B) You will get the same answer, since the (13.1 sin theta)^2 term is squared in the Vy equation, and cos theta = cos(-theta)

**Answer this Question**

**Related Questions**

Physics - A baseball is thrown from the roof of 23.5m -tall building with an ...

Physics - A baseball is thrown from the rood of a 27.5m tall building with an ...

Physics - A baseball is thrown with an initial velocity of 37 m/s at an angle of...

Physics - A man stands on the roof of a 19.0 m-tall building and throws a rock ...

physics - A baseball thrown at an angle of 65.0^\circ above the horizontal ...

Physics - A man stands on the roof of a building that is 50 m tall and throws a ...

Physics - A man stands on the roof of a building that is 50 m tall and throws a ...

Physics ASAP PLEASE - A baseball is thrown at an angle of 40.0° above the ...

PHYSICS HELP PLEASE! - A baseball is thrown at an angle of 40.0° above the ...

Physics(urgent) - A ball is thrown horizontally from the roof of a building 58.5...