momentum and impulse Flashcards
1
Q
what is the formula for momentum?
A
momentum [Ns]= mass × velocity
momentumn is a vector
2
Q
what is impulse?
A
the change in momentum
3
Q
A
Direction is so important to define clearly on diagram
4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
Q
A
Trick with the kinetic energy (1st part)
19
Q
A
“Falls off initially with negligible velocity relative to “ means no external force acts and sos momentum in conserved and velocity stays the same
20
Q
Relative speed types
A
21
Q
A
22
Q
A
Coefficient of restitution only applies to perpendicular velocities. Parallel to barrier velocities are conserved
23
Q
Using coefficient of restitution in terms of speed of separation and distance of separation
A
24
Q
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