Projectile Question for Physics
Favorites|Homepage
Subscriptions | sitemap
HOME > > Projectile Question for Physics

Projectile Question for Physics

[From: ] [author: ] [Date: 12-09-11] [Hit: ]
7 m/s. Acceleration due to gravity is 9.8 m/s^2. What speed will Tom have just before he hits?-Find the x- and y-component of his speed separately, then combine them to get the actual resultant speed.......
Tom the cat is chasing Jerry the mouse across a table surface 2.3 m off the floor. Jerry steps out of the way last second, and Tom slides off the edge of the table at a speed of 7.7 m/s. Acceleration due to gravity is 9.8 m/s^2. What speed will Tom have just before he hits?

-
Find the x- and y-component of his speed separately, then combine them to get the actual resultant speed.

X-component
The x-component of the speed will be 7.7 m/s just before he hits. That's because there is no acceleration/deceleration in the x-direction, so the speed must remain constant.

Y-component.
The y-component of the speed starts off at 0 m/s right when he slides off the table. He accelerates downward at 9.8 m/s² and falls 2.3 m.
v₂² = v₁² + 2ad
v₂² = 0² + 2(9.8)(2.3)
v₂² = 45.08

Now find the magnitude of the final speed.
v = √(vx² + vy²)
v = √(7.7² + 45.08)
v = 10.216 m/s
1
keywords: for,Projectile,Question,Physics,Projectile Question for Physics
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .