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Impulse and Momentum

by patymae
Tags: impulse, momentum impulse, physics
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patymae
#1
Dec31-09, 10:07 PM
P: 3
1. The problem statement, all variables and given/known data
Two identical cars (m = 1350 kg) are traveling at the same speed of 25.0 m/s. They are moving in the directions shown in the drawing. What is the magnitude of the total momentum of the two cars?
img:http://higheredbcs.wiley.com/legacy/...07_q1_03_1.gif


A particle is moving along the +x axis, and the graph shows its momentum p as a function of time t. What is the magnitude of the net average force in regions A . Give your answer to two significant figures, e.g., 6.3 or 0.72.
img: http://higheredbcs.wiley.com/legacy/...07_q1_08_1.gif

2. Relevant equations

i don't know i'm confused.

3. The attempt at a solution

please help me.thank you very much!!
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rock.freak667
#2
Jan1-10, 12:44 AM
HW Helper
P: 6,207
For the first one, try splitting the momenta into x and y components and then finding the resultant x and y momenta
patymae
#3
Jan1-10, 04:37 AM
P: 3
how can i split the momentum?hoho confused

Borek
#4
Jan1-10, 04:58 AM
Admin
Borek's Avatar
P: 23,363
Impulse and Momentum

Momentum is a vector.


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