Calculating Velocity After Impulse | Momentum and Impulse Homework Help

  • Thread starter Thread starter baileydancer98
  • Start date Start date
  • Tags Tags
    Impulse Momentum
Click For Summary
To determine the final velocity of a 5.00 kg object after a 30.0 N·s impulse applied due east, the initial momentum is calculated as 50 kg·m/s (5 kg x 10 m/s). The impulse adds to the initial momentum, resulting in a total momentum of 80 kg·m/s. Dividing this total momentum by the mass gives a final velocity of 16 m/s. The calculations confirm the answer is correct, resolving any uncertainty about the solution. The final velocity after the impulse is 16 m/s east.
baileydancer98
Messages
2
Reaction score
0

Homework Statement


A 5.00 kg object traveling at 10 m/s east. Determine the velocity of the mass after an impulse of 30.0 NxS due east applied.

Homework Equations


Impulse=F x T p=m x v impulse= change in P

The Attempt at a Solution


M= 5.0 Kg Pf-Pi=Ft Pf=Pi+Ft Pi= (5x10) +30 Pf= 50+30=80 Vf=80 divided by 5 =16
Vi=10 m/s
Impulse= 30 n x s
Vf=?[/B]
 
Physics news on Phys.org
baileydancer98 said:
Vf=?

baileydancer98 said:
Vf=80 divided by 5 =16

I believe you have answered your own question?
 
JeremyG said:
I believe you have answered your own question?
I was not sure if the answer was correct.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
View full post »

Similar threads

How Does Impulse Relate to Momentum Change in Physics Problems?
  • · Replies 7 ·
Replies
7
Views
2K
Momentum and impulse of a football
  • · Replies 2 ·
Replies
2
Views
2K
Calculating the magnitude of an impulse
  • · Replies 4 ·
Replies
4
Views
5K
Golf club 🏌️and ball ⛳ impulse problem
  • · Replies 19 ·
Replies
19
Views
3K
Calculate change in KE and momentum (impulse)
  • · Replies 7 ·
Replies
7
Views
4K
Impulse and Momentum: Ball and cart connected by a cord
  • · Replies 24 ·
Replies
24
Views
3K
How to Calculate Impulse in a Momentum Problem?
  • · Replies 6 ·
Replies
6
Views
2K
What is the magnitude of the final momentum?
  • · Replies 4 ·
Replies
4
Views
6K
Impulse Question -- A car changing speed and direction
  • · Replies 7 ·
Replies
7
Views
2K
Pushing a stalled car out of an intersection
  • · Replies 1 ·
Replies
1
Views
2K