Calculating Recoil Speed: Mass, Arrow and Velocity

Click For Summary

Homework Help Overview

The discussion revolves around calculating the recoil speed of a person shooting an arrow, given the mass of the person, the mass of the arrow, and the velocity of the arrow. The subject area pertains to the conservation of momentum in physics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss various equations related to momentum conservation, including attempts to apply the equation (M1*V1)+(M2*V2) = (M1+M2)*Vf and M1V1 = M2V2. Questions arise regarding the correctness of these approaches and the conversion of units.

Discussion Status

Some participants have provided guidance on the correct application of momentum conservation principles, while others express uncertainty about their calculations and unit conversions. There is no explicit consensus on the correct method yet, but the discussion is ongoing.

Contextual Notes

One participant notes a potential error in unit conversion from grams to kilograms, which may affect their calculations. This highlights the importance of unit consistency in solving the problem.

DStan27
Messages
8
Reaction score
0
can anyone help me with this problem ?? if i am given the mass of a person shooting and arrow, the mass of the arrow and the velocity at which the arrow was shot, what formula could i use to find the the recoil speed of the person.
 
Last edited:
Physics news on Phys.org
i've tried using (M1*V1)+(M2*V2) = (M1+M2)*Vf but that didn't work. I've also tried to use M1V1 = M2V2 a couple of ways but can't get the right answer. am i even close to using the right equation??
 
Yes you are trying to conserve momentum. You need to use the first one but in a different way.
 
ok, thanks i was actually doing it right but I'm an idiot and converted g to kg wrong.
 

Similar threads

Arrow strike, Avg force, Conservation of energy
  • · Replies 3 ·
Replies
3
Views
1K
Calculate the speed and angle of the center of mass before a collision
  • · Replies 3 ·
Replies
3
Views
1K
Perfectly Elastic Collision Arrow / Finding Final Velocity
  • · Replies 2 ·
Replies
2
Views
2K
Can terminal velocity be determined from the information given?
  • · Replies 7 ·
Replies
7
Views
1K
Projectile motion of arrow shot parallel to ground
  • · Replies 14 ·
Replies
14
Views
6K
Horizontal Range (arrow fired max speed off moving horse)
  • · Replies 9 ·
Replies
9
Views
3K
What is the Recoil Velocity of a Cannon Shooting a 30 kg Shell at 500 m/s?
  • · Replies 3 ·
Replies
3
Views
2K
Needs clarity on this displacement vector diagram
  • · Replies 3 ·
Replies
3
Views
1K
Velocity vs Speed (What's more relevant here?)
  • · Replies 4 ·
Replies
4
Views
2K
Mass, acceleration and velocity
  • · Replies 3 ·
Replies
3
Views
2K