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A. a non-zero Kinetic energy
B. a non-zero Gravitional Potential Energy
C. a non-zero Momentum
D. a non-zero Mass
E. a non-zero Velocity

2007-02-18 02:21:09 · 6 answers · asked by Anonymous in Science & Mathematics Physics

6 answers

The correct answer is B & D. You see, the phrase 'at rest' implies that the velocity of the body is 0. Thus, only the quantities which depend on velocity would get affected, & others not depending on velocity won't. Since Kinetic Energy, Momentum & Velocity are dependent on the objects velocity, thus these quantities would be 0. Since Gravitional Potential Energy & Mass are independent of the object's velocity, these quantities won't get affected if the object is at rest.

2007-02-18 03:41:40 · answer #1 · answered by Kristada 2 · 0 0

D is the right answer becoz only an object which is in motion possess kinetic energy and only an object which is at a height and rest possess potential energy and only an object moving with force has momentum and velocity,only a moving object can have.

2007-02-18 11:09:21 · answer #2 · answered by pinky 2 · 0 0

I'm pretty sure it can only have a non-zero gravitational potential energy and a non-zero mass.

2007-02-18 10:28:04 · answer #3 · answered by Jake 1 · 0 0

Since the velocity is zero, the answer cannot be a(KE=.5mv^2), c(p=mv), or e(v=v). Every object has mass whether it is at rest or not. The answer is B(PE=mgh).

2007-02-18 10:29:07 · answer #4 · answered by Tim 2 · 0 0

WILL have inertia

2007-02-18 13:31:31 · answer #5 · answered by Deranged Soul.. 2 · 0 0

B & D

2007-02-18 10:46:22 · answer #6 · answered by Taffioso 1 · 0 0

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