Homework Help: Physics

Posted by Andrew on Wednesday, February 11, 2009 at 11:47pm.

A drowsy cat spots a flowerpot that sails first up and then down past an open window. The pot was in view for a total of 0.37 s, and the top-to-bottom height of the window is 2.20 m. How high above the window top did the flowerpot go?

S= ut +(1/2)at^2
S= (0)(0.215) + (0.5)(9.8)(0.215)^2
S= 0.2265025m

That's what I did and the site tells me I'm wrong. Please help.

Physics - drwls, Thursday, February 12, 2009 at 6:47am
The pot spends T = 0.185s going up and 0.185s going down past the window.
The average speed passing by the window is 2.20 m/0.185s = 11.89 m/s.
During passage, the pot increases speed by T*g = 0.185*9.81 = 1.815 m/s
The speed is therefore 12.80 m/s at the bottom of the window and 10.98 m/s at the top of the window.

The 10.98 m/s speed at the top of the window allows it to rise another 10.98^2/(2g)= 6.15 m past the top of the window

Answer this Question

Related Questions

AP Physics...ahaha - A drowsy cat spots a flowerpot that sails first up and then...
Physics - A drowsy cat spots a flowerpot that sails first up and then down past ...
Physics - A drowsy cat spots a flowerpot that saild first up and then down past ...
Physics - A drowsy cat spots a flower pot that sails first up and then down past...
Physics - A flowerpot falls off a windowsill and falls past the window below. It...
physics - a flowerpot falls from a window ledge far above the street. Some ...
Physics - The Flower Pot: A flower pot falls off a windowsill and falls past the...
physics - As you look out of your dorm window, a flower pot suddenly falls past...
mechanics - A cat is sleeping on the floor in the middle of a 4m wide room when ...
Physics - A flowerpot falls from a window sill 37.6 m above the sidewalk.? A) ...

For Further Reading

First Name:
School Subject:
Answer: