Multiple Choice Identify the choice that best completes the statement or answers the question 11 A stationary block is at rest on a rough inclined plane, as shown. If F, is the force of gravity, FN is the normal force, and Fr is the force of friction, which free-body diagram below is correct? b. d.

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Multiple Choice
Identify the choice that best completes the statement or answers the question
11
A stationary block is at rest on a rough
inclined plane, as shown. If F, is the force of
gravity, FN is the normal force, and Fr is the
force of friction, which free-body diagram
below is correct?
a.
12. Which of the following statements is not correct?
The weight of a body on Earth is a measure of the gravitational attraction of Earth on that
body
b.
a.
Gravitational force is a scalar quantity because it has magnitude only,
The gravitational mass of a body depends on its surroundings and altitude.
Weight and force have both magnitude and direction.
C.
d.
13 Which of the following statements about gravitational force, Fa, is not correct?
The gravitational force between two objects depends on their separation
b Gravitational force is an attractive force only; it is never repulsive.
a.
C.
Gravitational forces always exist in pairs of equal magnitude.
d.
Gravitational force is the strongest of the fundamental forces.
Transcribed Image Text:Multiple Choice Identify the choice that best completes the statement or answers the question 11 A stationary block is at rest on a rough inclined plane, as shown. If F, is the force of gravity, FN is the normal force, and Fr is the force of friction, which free-body diagram below is correct? a. 12. Which of the following statements is not correct? The weight of a body on Earth is a measure of the gravitational attraction of Earth on that body b. a. Gravitational force is a scalar quantity because it has magnitude only, The gravitational mass of a body depends on its surroundings and altitude. Weight and force have both magnitude and direction. C. d. 13 Which of the following statements about gravitational force, Fa, is not correct? The gravitational force between two objects depends on their separation b Gravitational force is an attractive force only; it is never repulsive. a. C. Gravitational forces always exist in pairs of equal magnitude. d. Gravitational force is the strongest of the fundamental forces.
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