Posted by **George** on Saturday, December 18, 2010 at 6:49pm.

A catapult throws a projectile at a 40.0° angle with a velocity of 26.0 m/s. How high will the projectile reach, and how far away will the projectile land?

- Physics -
**Damon**, Saturday, December 18, 2010 at 7:06pm
u =horizontal speed = 26 cos 40 = 19.9 m/s

Vi initial vertical = 26 sin 40 = 16.7 m/s

time to top:

v = 0 = Vi - 9.8 t

9.8 t = 16.7

t = 1.705 s to top (3.41 s total in air)

HOW HIGH?

h = 0 + Vi t -4.9 t^2

= 16.7(1.705) - 4.9 (1.705)^2

= 28.47 - 14.25

= 14.2 meters

HOW FAR?

u * time in air = 19.9*3.41 = 67.9 m

- Physics -
**George**, Saturday, December 18, 2010 at 7:10pm
A super-hero is leaping from the roof of one building onto another. The first building is 120 meters high and the second building is 80 meters high. The horizontal velocity of the super-hero is 12.0 m/s. What is the maximum possible distance between buildings that the hero can leap across?

## Answer This Question

## Related Questions

- physics - A projectile was fired out of a lead ejector at an angle of 45 degrees...
- physics - a projectile is fired at 50 meters per second at an angle of 30 ...
- Physics - Mark launches a projectile 65 degrees from the horizontal and it ...
- physics - A projectile is launched from ground level to the top of a cliff which...
- physics - A ship maneuvers to within 2500m of an island's 1800m high mountain ...
- Physics - A projectile is launched from ground level to the top of a cliff which...
- Physics - A projectile is fired from ground level with a speed of 40 m/s at an ...
- physics - Brandon launches a projectile at an angle of 75 above the horizontal, ...
- Physics - Brandon launches a projectile at an angle of 75 degrees above the ...
- physics - brandon launches a projectile at an angle of 75 degrees above the ...

More Related Questions