I was riding my motorbike?

Question

and was hit by a pigeon, injuring my shoulder. Could anyone work out the impact weight of pigeon if i was travelling at 60mph. The Pigeon was also flying. Ta

No sorry the pigeon died

it was more of a glancing blow rather than a direct hit

Answer 1

The momentum equation [mv1 + MV1 = (m + M)V2]
is just half of the story. F = ma is the other half. Force (F) is like weight in that they are both in Newtons or Pounds in general. In fact weight is just a special name given to force stemming from the pull of gravity rather than other sources of force.

As most answerers indicate, you haven't given us enough info to answer your question. But you can make a WAG; here's how:

Start with mv1 + MV1 = (m + M)V2; where m is that little bitty bird and M is you and your bike initially traveling at v1 and V1 mph respectively. After the collision, the bird is stuck on you momentarily; so you, the bike, and the bird together are going V2 = 60 mph = 88 ft/sec But since the bird is so very tiny and defenseless, V2 = V1 = 88 ft/sec; that is, the impact didn't slow you down one bit.

So we can rewrite mv1 + MV1 = (m + M)V2 to be mv1 + MV2 = (m + M)V2 and mv1 = (m + M)V2 - MV2 = mV2 This leads to m(v1 - V2) = 0; which, if we divide by delta t (the time it took to change the bird's initial velocity (v1) into your velocity (V2 = 88 ft/sec), we have m(v1 - 88)/delta t ~ ma = F the force of the impact.

We don't know the mass of the bird (m), its initial velocity before iimpact (v1), and the delta t it took for the bird's velocity to become yours. But we can insert some reasonable values just to get a feel for the magnitudes of force that seem feasible.

For example, what do we get if we WAG m = .05 slug, v = 22 ft/sec, and delta t = .5 sec? That gives us F = (.05 X 22)/.5 = 2.2 pounds. Does that seem reasonable, given how it felt when you hit that bird? By the way m = .05 slug is the equivalent to about 1.6 pounds of bird weight. That may be a bit high; birds are very light compared to their size.

Anyway, there is the physics and how to work the problem. If you had some real data, you could work the problem precisely. Without that real data, however, you can still WAG it to get feasible possibilities.

Answer 2

A 750 is in simple terms too vast and strong for a newbie. Even the 250 is questionable. i began out on a 50cc Suzuki again in the early 70's. I discovered a lot on that small motorcycle. i ultimately moved on as a lot as a 750 and later an 1100 when I received adequate ability and self assurance. do no longer be in a hurry to flow up in engine length. the better the volume, the better and extra physically powerful the engine of the motorcycle is. once i develop right into a newbie there have been fairly some Honda ninety's round and various bikers received their commence on them. The motorcycles lately are some distance extra useful than the motorcycles of the equivalent length engine were 20 or 30 years in the past. Now a 500 is equivalent or maybe extra suitable to an older 750. if you're in an self-discipline the position that you would possibly want to correctly study off-street I recommend going that direction earlier going antagonistic to automobiles and trucks. A small dirt motorcycle will practice you the fundamentals of coping with and traction and get you used to the vigor without making you a purpose for police.

Answer 3

I will try to help with this but the collision speed on impact would have been around 120mph,this is calculated at a joint speed.
and the weight of the pigeon needs to be calculated and multiplied by ten,the approximate weight of a full grown pigeon is about 3lb so that would be 30lbs in weight with an impact speed of 120mph.
To give you an idea the human head weighs about ten pounds so if you can imagine its quite heavy.
I hope you understand this OK.

Answer 4

Use the law of conservation of momentum:

Model yourselves as particles in a head on collision

mv1 + MV1 = mv2 + MV2

M is the mass of you and you motor bike in kg
V1 is your initial velocity - 60 mph in ms^-1
V2 is you velocity after the collision hope you know this and didn't brake - it makes the model complicated.
Assume the velocity of the pigeon was 0 after the collision
Go back, pick up the pigeon and determine its mass.

Work out the velocity of the pigeon before impact. Hence work out its momentum before the collision.

Answer 5

You need the weight of the pigeon and the speed it was travelling, otherwise you are just guessing!

Answer 6

Was the poor pigeon ok?

Answer 7

If it were a swallow I may have been able to help, however I'm not too good with pigeons.

Answer 8

you would need more details for an acurate answer, i.e. point of impact, area of bird that made initial contact with you, angle of impact, speed and direction of bird with respect to your speed and direction. Its all rather boring really. you can look up conservation of momentum and guesstimate the numbers.

Answer 9

And you were still on your motorbike that impact should of been like you hitting a wall with your fist sure you were not dreaming

Answer 10

60 mph = 27m/s

The kinetic energy is then about 360 J.
This is about equivalent of you falling onto your shoulder from about 0.5m high.