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Duplicate of Newton's Laws. From an AP Physics Course. Flashcards | StudBud
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Duplicate of Newton's Laws. From an AP Physics Course.
Duplicate of Newton's Laws. From an AP Physics Course.
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Answers
1
A 9000 N cow is pushed on a level road by 4 students with a force of 500 N. NAR, a=
is 18 m/s2
is 1.8 m/s2
is 0.54 m/s2
is 0.055 m/s2
2
2 forces are applied to a 5 kg cow. One is 6 N north. The other is 8 N, west. The acceleration
has a magnitude of 2.0 m/s2
has a magnitude of 10 m/s2
has a magnitude of 2.8 m/s2
has a magnitude of 0.50 m/s2
3
The reaction force does not cancel the action force because
they act on different bodies
reaction force exists only after the action force is removed
the action force is greater than the reaction force
they are in the same direction
4
A book rests on a table, exerting a downward force on the table. The reaction to this force is
the inertia of the book
the force of the table on the book
the force of the Earth on the table
the force of the Earth on the book
5
A 5 kg shark is lowered with a downward acceleration of 2.8 m/s
2
. The tension in the rope is
49 N, up
14 N, up
35 N, up
35 N, down
6
A car travels east at constant velocity. The net force on the car is
down
east
zero
west
7
A ball with a weight of 1.5 N is thrown at 30° above the horizontal. At its peak,
zero N
the net force is 9.8 N, 30° below the horizontal
9.8 N, up
1.5 N, down
8
Acceleration is always in the direction
of the initial velocity
of the displacment
of the net force
of the instantaneous velocity
9
A 13 N and 12 N weight are hung over an Atwood's machine. The acceleration of the 13 N is
13/25
1/13
1
1/25
10
A 6 kg shark is moving south. A net force of 12 N north on it will cause an acceleration of
2 m/s2, south
2 m/s2, north
6 m/s2, north
36 m/s2, north
11
You stand on a scale in an elevator. Of the following, the scale reads the highest when
moves upward with constant speed
moves downward with increasing speed
remains stationary
moves downward with decreasing speed
