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Forces and Motion
Page 7
Questions (4,616)
1. The normal force is always less than or equal to force of gravity
a) True b) False 2. What is the value of the normal force?
2 answers
asked by
Jessie
666 views
A large fish hangs from a spring balance supported from the roof of an elevator.
If the elevator has an upward acceleration of
3 answers
asked by
Mike
1,008 views
The acceleration of gravity on the moon is 1.62 m/s² if a ball is dropped on the moon from a height of 1.50m determine the time
3 answers
asked by
Ella
232 views
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the bow of the boat at
4 answers
asked by
Jimmy Larson
6,949 views
A bridge 30 m long crosses a chasm. If the bridge is inclined at angle of 20 degrees to the horizontal, what is the difference
2 answers
asked by
H
994 views
Sitting on a horizontal track is a mass of 10kg. One end of the track is raised untill the mass just begins to slip. If the
1 answer
asked by
Henry
661 views
A 4.0-kg block and a 2.0-kg block are connected to opposite ends of a relaxed spring of spring constant 300 N/m. The blocks are
2 answers
asked by
gatanga
981 views
Air pressure doesn't crush everything underneath it because
A. air pressure is hypothetical and not a real force. B. air pressure
13 answers
asked by
Prisila
1,005 views
What would cause the momentum of a moving object to increase?
* 1 point A force acting in the direction opposite the object’s
1 answer
asked by
Ieasha30
322 views
An airplane is flying from Montreal to Vancouver. The wind is blowing from the west at 60km/hour. The airplane flies at an
4 answers
asked by
lilly
2,140 views
Specify the coordinate direction angle α1 of F1. Express your answer to two significant figures and include the appropriate
2 answers
asked by
mm
565 views
Groups of skydivers need to navigate through the air during a jump to get into a formation. How can skydivers who are below the
2 answers
asked by
HelpWanted
339 views
Assuming that Albertine's mass is 60.0kg , what is μk, the coefficient of kinetic friction between the chair and the waxed
2 answers
asked by
jame
937 views
In which situation is the magnitude of the total force greater than the magnitude of each of the individual forces?(1 point)
Resp
5 answers
asked by
I remain Anonymous
193 views
A truck carries newspapers. When it is half full of newspapers the truck has a mass of 1762kg. When it is a quarter full the
5 answers
asked by
Brendon
710 views
two children are fighting over a toy pull on it from opposite sides .the result is stand off.explain this term of the net force
2 answers
asked by
juan
730 views
How will an object at rest be affected if multiple forces working on it are opposed but unbalanced?(1 point)
Responses The mass
10 answers
asked by
hello na
358 views
The resistance of the motionof a vechincle is partly constant and partly constant and partly varies to the square of its
7 answers
asked by
Adekunle Adebola
2,402 views
Two people push a box from opposite directions
2 answers
asked by
Keyzia Boone
61 views
A boat moving at 5 mi/hr is ti cross a river in which the current is flowing at 3 mi/hr. In what direction should the boat head
4 answers
asked by
Master Hokage
954 views
Two forces FA and FB are applied to an object whose mass is 9.39 kg. The larger force is FA. When both forces point due east,
5 answers
asked by
Anonymous
10,616 views
The force shown in the figure acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x = 0.27 m.
the
6 answers
asked by
Sara
4,589 views
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch
3 answers
asked by
Nerdy Nancy
856 views
In which situation does the reactive force between two colliding objects cause a physical change?
the exhaust from a rocket
4 answers
asked by
Ieasha30
294 views
Four movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box.
4 answers
asked by
Carlos Jimenez
492 views
a horizontal force of 8.0 newtons is used to pull a 20.-newton wooden box moving toward the right along a horizantal, wood
5 answers
asked by
mike
4,925 views
A building’s 10th floor (34.5 m high) is blazing with fire. A fire truck arrived at the scene and the fire
men shoots water
4 answers
asked by
10
603 views
A 0.2-kilogram softball is thrown toward a catcher’s mitt. The ball is accelerating at a rate of 8 meters per second squared.
4 answers
asked by
Chiaki <3
459 views
Two boxes are connected by a light string that passes over a
light, frictionless pulley. One box rests on a frictionless ramp
3 answers
asked by
David
1,161 views
A rope is attached to a block that has a weight of 120N. When the rope exerts an upward force of 250N on the block, what is the
5 answers
asked by
Anomynous
2,341 views
Superman must stop a 190-km/h train in 180m to keep it from hitting a stalled car on the tracks.
part a)If the train's mass is
6 answers
asked by
john
9,151 views
A balloon floats inside a stopped car. When the car starts moving forward, the balloon appears to move backward relative to the
5 answers
asked by
iammmmasecretttt
592 views
A sky diver jumps from a reasonable height above the ground. The air resistance she experiences is proportional to her velocity,
4 answers
asked by
Melany
3,881 views
Suppose that a person with a reach of 27 inches and a shoulder height of 5 feet is standing upright on a mountainside that makes
6 answers
asked by
Rene
2,214 views
4 of 54 of 5 Items
4 of 54 of 5 Items Question A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end
5 answers
asked by
Chiaki <3
263 views
Two forces, F1 and F2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 69.0 N and F2 = 24.5
4 answers
asked by
Nilan
1,836 views
A strong, weightless rope has a 0.15 kg mass hanging from the middle of it. What tension force will make the rope horizontal,
4 answers
asked by
MM
2,272 views
Which direction will the box move in the diagram below?
(Its a square in the middle and it has a long arrow pointing to it on the
36 answers
asked by
Amber
13,890 views
On a planet far, far away, an astronaut picks up a rock. The rock has a mass of 4.20 kg, and on this particular planet its
4 answers
asked by
jose calvario
4,563 views
I need help really bad.
What are the three ways that unbalanced forces can cause an object to change it's motion?
5 answers
asked by
Katy
1,385 views
tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.0 meters long. his speed at the bottom
7 answers
asked by
hannah!
9,746 views
Can someone just have a quick look over this question and my current answers and tell me if there are any massive mistakes im
7 answers
asked by
Anon
1,620 views
Scott is rolling down a 30° slope on his skateboard.The total mass of Scott and the skateboard is 75 kg. The rolling friction
5 answers
asked by
Deucalion
3,738 views
A 100 gram resistive slider (thick line) moves without friction along a vertical U-shaped conducting track (thin line) that is
5 answers
asked by
BJ
637 views
A 79.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with
5 answers
asked by
Hannah
1,874 views
Given that force 1=60 pounds and force 2=90 pounds, find the angle between the forces if the magnitude of the resultant force is
4 answers
asked by
Shelby
4,008 views
A force of 10 N causes aspring to extend by 20mm find the spring constant of the spring in N/m
12 answers
asked by
Anonymous
6,004 views
Need serious help!!
1. How can the momentum of a moving object be found? A. By multiplying its mass by its acceleration. B. By
11 answers
asked by
Blake
8,687 views
Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In
25 answers
asked by
Justin Ross
7,978 views
A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is no significant friction
4 answers
asked by
ericka
7,000 views
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Parent Categories (43)
Aerospace Engineering
Astronomy
Circular motion
Classical mechanics
Dynamics
Earth Science
Electricity
Energy and Motion
Force and Motion
Forces
Gravity
Kinematics
Laws of motion
Mathematics
Mechanical Systems
Mechanics
Mechanics or Classical Mechanics
Mechanics or Physics
Mechanics/Classical Mechanics
Mechanics/Dynamics
Motion
Newton's Laws
Newton's Laws of Motion
Newton's Third Law
Newtonian Mechanics
Physical Education
Physical Science
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Physics
Physics and Mechanics
Physics and Motion
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