science

1. Which of the following best describes the movement of an object at rest if not outside sources act on it.
A it will move due to inertia
B)gravity will take hold
C) it will stay at rest due to inertia
D) it will stay at least due to gravity

2. A 2,500 kg car moves south at 15 m/s^2; 15 m/s^2 south is the______of the car
A) acceleration
B)displacement
C)velocity
D)speed

3. Two people are pushing a couch from opposite sides. One person is pushing to the right with a force of 3N. The other person is using to the left with a force of 4N. Which of the following best describes the movement of the couch.
A) the couch will move to the left with force of 1N
B) the couch will not move
C) the couch will move right with the force of 7N
D) the couch will movleft with the force of 7N

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  1. My answer selections are
    1)A
    2)A
    3)D

  2. you need to revisit 1. and 3.

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    posted by R_scott

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