A 1 kg box of donuts weighs 9.8 N, and it is hanging at rest on...
A 1 kg box of donuts weighs 9.8 N, and it is hanging at rest on a length of twine suspended from the ceiling of police headquarters. The force that forms a “third law pair” with that weight force is
9.8 N, upward, exerted by the twine on the box
9.8 N of upward gravitational force exerted by the box on Earth
itself
9.8 N downward, from the box on the twine
9.8 N, downward, from the twine, acting on the ceiling
Homework Answers
The earth exerts that weight force on the box. Hence the “third law pair” with that weight force is 9.8 N of upward gravitational force exerted by the box on Earth itself.
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A book weighing 5 N rests on top of a table. 1.A downward force of magnitude 5 N isexerted on the book by the fo...
A book weighing 5 N rests on top of a table.
1.A downward force of magnitude 5 N isexerted
on the book by the force of
thetable
gravity
inertia
.
2. An upward force of magnitude _____
isexerted on the _____ by the table.
A. 6N/table
B. 5N/table
C. 5N/book
D. 6N/book
3. Do the downward force in Part A and
theupward force in Part B constitute a 3rd law pair?
yes
no
4. The reaction to the force in...
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A book weighing 5 N rests on top of a table.
1.A downward force of magnitude 5 N isexerted
on the book by the force of
thetable
gravity
inertia
.
2. An upward force of magnitude _____
isexerted on the _____ by the table.
A. 6N/table
B. 5N/table
C. 5N/book
D. 6N/book
3. Do the downward force in Part A and
theupward force in Part B constitute a 3rd law pair?
yes
no
4. The reaction to the force in...
105.00 L 5.00 kg 0.00 N Fluid Oil Water Weight of 5.00 kg wood block = 49 N Step 2: Place the wood block in the water and notice that it floats. When the wood block rests on the ground, the downward gravitational force is balanced by an upward normal (“contact") force. When floating, the gravitational force is still there, but the normal (contact") force is not. The force exerted by the fluid is the buoyant force (B). When floating,...
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ars nly shrank to a tenth mass What would o the Sun? d sphere to a and mass How where G-untversal gravitational constant: G-6.67x101 N k m-3 kg- the mass of the baby M-either the mass of Mars or the obstetrician, and r-the separation between the baby and either Mars or the doctor at the instant of birth th bored from one of the Earth, and seball down this e surface What Questions 1. Calculate Fr. the force on the...
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