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| 19. |
If the kinetic
energy of an object is doubled, which of the following must increase by
1.4 for the object?
|
|
A. |
speed |
KE
= 1/2 mv2
1.42 = 2
if the velocity increases by 1.4, the kinetic
energy is doubled.
The correct answer is A. |
|
B. |
acceleration |
|
C. |
mass |
|
D. |
gravitational potential energy |
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