ME 1001 Mindtap Comprehensive Questions
And Answers Latest upload 2024/2025 with 100% verified
Solution
An astronaut accidentally drops a wrench in space. According to Newton's first law of motion, the force
required to keep the wrench moving is ________.
a. proportional to the force exerted by the astronaut's hand
b. proportional to its momentum
c. proportional to its mass
d. zero - ANSWER-d. zero
A hockey puck sliding on a perfectly frictionless surface will eventually come to rest due to inertia.
a. True
b. False - ANSWER-b. False
"For every action, there is an equal but opposite reaction." Which law is this?
a. Newton's second law of motion
b. Newton's first law of motion
c. Newton's third law of motion
d. First law of thermodynamics - ANSWER-c. Newton's third law of motion
A force is an example of a vector because it has both ________ and ________.
a. USCS units; SI units
b. size; magnitude
c. direction; polarity
d. magnitude; direction - ANSWER-d. magnitude; direction
A ________ is a single force acting on an object to produce the same net effect as all the collective
forces acting on the object.
a. vector polygon
,b. scale drawing
c. force system
d. resultant force - ANSWER-d. resultant force
The acceleration of a bullet is inversely proportional to its mass.
a. True
b. False - ANSWER-a. True
A horse pulls a 981-N cart with a constant horizontal force of 200 N. Neglecting any friction, find the
horizontal acceleration of the cart.
a. 2 m⁄s²
b. 0.2 m⁄s²
c. 48.1 m⁄s²
d. 9.81 m⁄s² - ANSWER-a. 2 m⁄s²
A moment acts to make objects ________.
a. expand
b. rotate
c. heat up
d. oscillate
e. compress - ANSWER-b. rotate
Identify the correct unit for a moment.
a. N.kg
b. kg∙s
c. N∙m
d. (kg∙m)⁄s - ANSWER-c. N∙m
How are rigid bodies distinguished from particles?
, a. Rigid bodies are physically larger than particles.
b. Rigid bodies are the same as particles and can be treated similarly.
c. Rigid bodies have much greater rigidity in structure.
d. Unlike particles, the dimensions of rigid bodies are essential for the problem being considered. -
ANSWER-d. Unlike particles, the dimensions of rigid bodies are essential for the problem being
considered.
An object is said to be in equilibrium if the resultant force acting on it is greater than zero.
a. True
b. False - ANSWER-b. False
Forces applied to journal bearings that are oriented perpendicular to the length of the shaft are referred
to as what kind of forces?
a. Thrust forces
b. Radial forces - ANSWER-b. Radial forces
Using the x and y components of a force, F x = 150 N and F y = 110 N, determine the magnitude and
angle of action of the force.
a. 186 N, 53.7°
b. 186 N, 36.3°
c. 260 N, 53.7°
d. 260 N, 36.3° - ANSWER-b. 186 N, 36.3°
Unit vectors i and j represent vectors in the ________ and ________ directions respectively.
a. positive x; positive y
b. negative x; negative y
c. positive x; negative y
d. positive y; positive x
e. negative x; positive y - ANSWER-a. positive x; positive y
And Answers Latest upload 2024/2025 with 100% verified
Solution
An astronaut accidentally drops a wrench in space. According to Newton's first law of motion, the force
required to keep the wrench moving is ________.
a. proportional to the force exerted by the astronaut's hand
b. proportional to its momentum
c. proportional to its mass
d. zero - ANSWER-d. zero
A hockey puck sliding on a perfectly frictionless surface will eventually come to rest due to inertia.
a. True
b. False - ANSWER-b. False
"For every action, there is an equal but opposite reaction." Which law is this?
a. Newton's second law of motion
b. Newton's first law of motion
c. Newton's third law of motion
d. First law of thermodynamics - ANSWER-c. Newton's third law of motion
A force is an example of a vector because it has both ________ and ________.
a. USCS units; SI units
b. size; magnitude
c. direction; polarity
d. magnitude; direction - ANSWER-d. magnitude; direction
A ________ is a single force acting on an object to produce the same net effect as all the collective
forces acting on the object.
a. vector polygon
,b. scale drawing
c. force system
d. resultant force - ANSWER-d. resultant force
The acceleration of a bullet is inversely proportional to its mass.
a. True
b. False - ANSWER-a. True
A horse pulls a 981-N cart with a constant horizontal force of 200 N. Neglecting any friction, find the
horizontal acceleration of the cart.
a. 2 m⁄s²
b. 0.2 m⁄s²
c. 48.1 m⁄s²
d. 9.81 m⁄s² - ANSWER-a. 2 m⁄s²
A moment acts to make objects ________.
a. expand
b. rotate
c. heat up
d. oscillate
e. compress - ANSWER-b. rotate
Identify the correct unit for a moment.
a. N.kg
b. kg∙s
c. N∙m
d. (kg∙m)⁄s - ANSWER-c. N∙m
How are rigid bodies distinguished from particles?
, a. Rigid bodies are physically larger than particles.
b. Rigid bodies are the same as particles and can be treated similarly.
c. Rigid bodies have much greater rigidity in structure.
d. Unlike particles, the dimensions of rigid bodies are essential for the problem being considered. -
ANSWER-d. Unlike particles, the dimensions of rigid bodies are essential for the problem being
considered.
An object is said to be in equilibrium if the resultant force acting on it is greater than zero.
a. True
b. False - ANSWER-b. False
Forces applied to journal bearings that are oriented perpendicular to the length of the shaft are referred
to as what kind of forces?
a. Thrust forces
b. Radial forces - ANSWER-b. Radial forces
Using the x and y components of a force, F x = 150 N and F y = 110 N, determine the magnitude and
angle of action of the force.
a. 186 N, 53.7°
b. 186 N, 36.3°
c. 260 N, 53.7°
d. 260 N, 36.3° - ANSWER-b. 186 N, 36.3°
Unit vectors i and j represent vectors in the ________ and ________ directions respectively.
a. positive x; positive y
b. negative x; negative y
c. positive x; negative y
d. positive y; positive x
e. negative x; positive y - ANSWER-a. positive x; positive y
