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Mentoring: Momentum and Impulse Flashcards | StudBud
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Mentoring: Momentum and Impulse
Mentoring: Momentum and Impulse
12 terms
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StudBud Administration
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Review for Impulse and Momentum and other stuff
Flashcards
12 cards
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Questions
12
Answers
1
Jen has a mass of 50kg. She is driving 35m/s when she hits the airbag in .5s. Force she got is:
875 N
3500 N
-875 N
-3500 N
2
If mass = 10 kg and velocity is 5 m/s at height of 20 m, kinetic energy and potential energy
50 J,1960J
125 J,1960J
25 J,200J
Neither of these
3
Einstein's Two Postulates
Spacetime is a 4D Hausdorff differential manifold; objects follow geodesics
Mass and Energy are the same; Energy go Boom!
God does not play dice; God instead prefers cards
Laws of physics same in all inertial frames; The speed of light is constant
4
0.24 kg clay moving at 16 m/s is stopped in 91 ms (millisecond). Find the force applied by it.
51 N
42 N
26 N
35 N
5
Is momentum a vector or scalar quantity?
scalar
vector
6
Which of the following are used to find impulse?
acceleration & time
mass & acceleration
force & distance
force & time
7
Change in momentum equals mass times ___________?
change in velocity
change in time
change in force
change in displacement
8
An object with momentum must have what two things?
mass & acceleration
gravity & time
velocity & displacement
mass & velocity
9
mass = 2 kg, x(t) = 4.5t+2.4t
2
+1.1t
3
What is the momentum at t = 3 seconds
42 kg m/s
98 kg m/s
16 kg m/s
130 kg m/s
10
30 N force is acting on a mass at 30
0
from +x, the object is displaced along +y of 10 m, work?
None of these
300 J
900 J
150 J
11
F(t) = 3x
2
+2x Find the Change in momentum from t=0 to t=2
12 kg m/s
0 kg m/s
16 kg m/s
8 kg m/s
12
What are the units of momentum?
kg/m/s
mi/hr
m/s/s
kg*m/s
