bump...
On a side note my class is part of a physicis without lectures trial at me school we are the second class to be subjected to this new teaching style and it is horiable. We have Zero lectures and are told to determine equations on our own... the teacher will only answer questions we...
Another Fine Gymnist problem ...
A gymnist is swinging on a high bar. The distance between his waist and the bar is 1.0 m, as the drawing shows.
At the top of the swing his speed is momentarily zero. ignoring friction and treating the gymnist as if all his mass is located at his waist...
ok having problems with part b of golf ball problem
47.0 g golf ball is driven from the tee with an initial speed of 52.0 m/s and rises to a height of 25.0 m.
(a) Neglect air resistance and determine the kinetic energy of the ball at its highest point.
J
(b) What is its speed when it is 10.0...
so for the golf ball KE=1/2mV2 + mgh
.5(.047*52^2)+.047*-9.8*25=52.029
Tried it and it worked so thanks guy i was neglecting to make accel due to grav -.
As far as the jet problem i am still lost...
well for question 1.) i tried to use KE=.5mv2 and was not right so i tried
.5mv2+mgh also not right i am lost at this point...
And for question 2 i tried to do
4.7x10^7=1.8x10^5+x
also not right any ideas?
I am compleatly lost on these two KE Work-Energy Theorem Problem questions any feedback or help would be greatly appreciated. Thank you in advance...
1.)
47.0 g golf ball is driven from the tee with an initial speed of 52.0 m/s and rises to a height of 25.0 m.
(a) Neglect air resistance...