Question

Velocity Question

Answer 1

The world record for fresh hen’s egg throwing is 96.90 m, set in 1981. Assuming
no air resistance, what would have been the (a) throwing speed; (b) elevation
angle; (c) maximum height; (d) time of flight?

Answer 2

I'm having some weird issues, where I am given too little information to solve...

Answer 3

Let \(x\) be the total velocity
\(x_h=x\times\cos\left(\theta\right)\)
\(x_y=x\times\sin\left(\theta\right)\)
\[t=\frac{96.90}{x\times\cos\left(\theta\right)}\]
\[s_y=x_yt+\frac{1}{2}a_yt^2\]
\[0=x\times\cos\left(\theta\right)\times\left(\frac{96.90}{x\times\cos\left(\theta\right)}\right)+\frac{1}{2}\times-9.8\times\left(\frac{96.90}{x\times\cos\left(\theta\right)}\right)^2\]

Answer 4

If the world record is set then the angle of elevation should be 45 degrees
otherwise it would not have been a record

Answer 5

Then why would they ask for elevation angle..?

Answer 6

Whoops, thats meant to be \(x\times \sin\left(\theta\right)\)

Answer 7

For \(x_y\)

Answer 8

Any dieas @ganeshie8 @UnkleRhaukus ?

Answer 9

i also think it is justified to use 45° as the elevation angle

Answer 10

But I still don't know why they would ask it in the question... let me look at the solution

Answer 11

Wow. The angle is 45 degrees in the book -_-

Answer 12

Can you solve it without knowing the angle?

Answer 13

its like common sense @Ahsome :P

Answer 14

you cannot use common sense in physics

Answer 15

@nincompoop, TRUTH

Answer 16

But I guess I'll just assume you had to assume the whole time..?

Answer 17

any other ideas?? @nincompoop