
#1
Sep1407, 11:32 AM

P: 9

A football is thrown upward at a(n) 43 degree angle
to the horizontal. The acceleration of gravity is 9.8 ms^2 : To throw a(n) 77.8 m pass, what must be the initial speed of the ball? Answer in units of ms. 



#2
Sep1407, 11:39 AM

Mentor
P: 8,287

Again, you need to show some work. Are you familiar with the kinematic equations for constant acceleration? Do any apply here?




#3
Sep1407, 11:43 AM

P: 9

i need some major help i know the formula for a= vfvi/t




#4
Sep1407, 11:51 AM

Mentor
P: 8,287

a football is thrown upward at a 43 degree angle to the horizontal
Try considering vertical and horizontal components separately, and look at the equations I gave you in your other thread. Have a go and I'll guide you, but I'm not going to set up every one of your questions for you.



Register to reply 
Related Discussions  
Ball thrown upward and another is dropped  Introductory Physics Homework  3  
Acceleration thrown upward  Introductory Physics Homework  5  
ball thrown upward  Introductory Physics Homework  26  
Horizontal force with a crate at a 27 degree angle  Introductory Physics Homework  4  
Charged particle thrown upward.. please help (almsot there)  Introductory Physics Homework  3 