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Forces and Motion
Page 9
Questions (4,616)
The drawing shows a large cube (mass = 34 kg) being accelerated across a horizontal frictionless surface by a horizontal force
3 answers
asked by
MJ
939 views
Sally applies a total force of 71 N with a rope
to drag a wooden crate of mass 100 kg across a floor with a constant acceleration
4 answers
asked by
Jacob
2,483 views
1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a
7 answers
asked by
Cameron
4,813 views
A mover has to move a heavy sofa of mass 49.0 kg to the second floor of the house. As he pulls on the rope tied to the sofa, he
4 answers
asked by
Madison
4,518 views
a force of 200 N is exerted at an angle 30 degrees with respect to the horizontal on an object whose mass is 30kg. the
4 answers
asked by
christoper allen
1,868 views
A parachutist relies on air resistance (mainly on her parachute) to decrease her downward velocity. She and her parachute have a
4 answers
asked by
Ben
1,904 views
A packing crate of weight 50N is placed on a plane inclined at 35°from the horizontal. If the coefficient of static friction
7 answers
asked by
Siyam
1,031 views
Suppose two children push horizontally, but in exactly opposite directions, on a third child in a wagon. The first child exerts
4 answers
asked by
Steve
7,661 views
Three people pull horizontally on ropes attached to a post, as shown in the figure.(Figure 1) The total force that they exert on
5 answers
asked by
Nerdy
4,204 views
1)When a car drives off a cliff, why does it rotate forward as it falls? (Consider the torque it experiences as it rolls off the
4 answers
asked by
Kiarra
2,709 views
A sled and rider have a total mass of 58.4 kg. They are on a snowy hill accelerating at 0.4g. The coefficient of kinetic
4 answers
asked by
joy
3,254 views
A 16.0 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 61.0° angle with the horizontal.
(a
4 answers
asked by
phys
4,785 views
A mass M = 40.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, as
4 answers
asked by
Lina
3,178 views
An object of mass 10kg is placed on an inclined plane at 30 degree to the horizontal. Calculate the reaction between two surface
7 answers
asked by
God'sp
3,746 views
Two boys stand on the surface of a frozen lake where μs = 0.15 and μk = 0.10. The 30.0 kg boy shoves the 40.0 kg boy with a
5 answers
asked by
Mush
2,209 views
A crate sets on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate
4 answers
asked by
Johnny
2,686 views
Bonnie and Clyde are sliding 500 bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde
4 answers
asked by
Kris
3,229 views
A block weighing 8.3 N requires a force of 2.6 N to push it along at constant velocity. What is the coefficient of friction
6 answers
asked by
Mel
4,230 views
The three blocks shown are released from rest and are observed to move with accelerations that have a magnitude of 1.5 m/s^2.
4 answers
asked by
Anonymous
3,328 views
A body of mass 3 kg experiences a force F=(2i +2j) N. If its initial velocity v=( -8i + 4j) m/s, then the time at which it will
5 answers
asked by
Clandestine
8,408 views
A 0.500 kg object is thrown vertically upward with an average applied force of 8.20 N by a student. The force is applied through
4 answers
asked by
Jeff
2,345 views
A net force of 25N is applied for 5.7s to a 12-kg box initially at rest. Waht is the speed of the box at the end of the 5.7s
6 answers
asked by
Natasha
8,908 views
On vacation, your 1400-kg car pulls a 520-kg trailer away from a stoplight with an acceleration of 2.00 m/s2 .
A: What is the net
4 answers
asked by
LISA
4,026 views
You and your friend are pulling a 2.5 kg sled across a slightly rough patch on the frozen Rideau canal, such that there is a
5 answers
asked by
Melissa
2,232 views
A penny rests on top of a bowling ball. You give the bowling ball a slight bump and the penny slides off the frictionless,
4 answers
asked by
George
2,307 views
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of
5 answers
asked by
Amanda
3,171 views
Two packing crate of masses 10.0kg and 5.00kg are connected by a light string that passes over a frictionless pulley .the 5.00kg
4 answers
asked by
rose
6,583 views
A student places five books next to each other on their ends. She then pushes the first book with her finger, and a few seconds
4 answers
asked by
ashley
3,317 views
Find the magnitude and direction of a)the resultant b)the equilibrant of two forces 10N acting in the direction N030'E and 15N
6 answers
asked by
lucky
1,714 views
An object in space is initially stationary relative
to the Earth. Then, a force begins acting on the object, starting with a
4 answers
asked by
jungtaesoo
3,432 views
Find the Magnitude of the force exerted by each cable to support the 625 N punching bag. One cable is connected to the ceiling
4 answers
asked by
kacey
3,904 views
To move a box you pull on the handle as indicated in the diagram shown below with a constant force F. The mass of the box is m =
4 answers
asked by
JennaPoop
2,000 views
A mobile consists of two very lightweight rods of length l = 0.400 m connected to each other and the ceiling by vertical
4 answers
asked by
Luca
1,329 views
A river flows at a speed of 4.60 m/s. A boat, capable of moving with a speed of 5.80 m/s in still water is rowed across the
4 answers
asked by
Alex
2,793 views
How much force is the air exerting on the front surface of the book with dimensions 19 x 27 cm. Assume atmospheric pressure
4 answers
asked by
ann
3,335 views
A solid uniform 45.0 kg ball of diameter 32.0 cm is supported against a vertical frictionless wall using a thin 30 cm wire of
4 answers
asked by
L
3,058 views
a box with mass 20kg rests on a frictionless ramp with a 15degree slope. a mover pulls up on a rope attached to the box to pull
5 answers
asked by
thalia
5,371 views
A skydiver leaps from a hovering helicopter at 2000 feet. Sketch a small graph showing each of the following from the time she
4 answers
asked by
Favour
1,356 views
The magnitude of each force is 283 N, the
force on the right is applied at an angle 41� and the mass of the block is 27 kg. The
4 answers
asked by
james
1,833 views
Two forces are applied to a car in an effort to accelerate it, as shown below. The first force, F1 = 364 N, is applied at an
4 answers
asked by
Davis Parker
8,715 views
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts.
4 answers
asked by
D
2,108 views
A 80 kg skier grips a moving rope that is powered by an engine and is pulled at constant speed to the top of a 25 degree hill.
4 answers
asked by
Kensey
5,960 views
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.80 * 10^6 N, one 16 degrees west of north and
4 answers
asked by
anonymous
3,260 views
Adolf and Ed are wearing harnesses and are hanging at rest from the ceiling by means of ropes attached to them. Face to face,
4 answers
asked by
Tara
5,132 views
Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant
4 answers
asked by
nik
5,883 views
Someone attaches a 27 kg bale of hay to one end of a rope passing over a frictionless pulley connected to a beam in a hay barn.
5 answers
asked by
ash
3,632 views
An elevator weighing 2.00*10^5 N is supported by a steel cable. What is the tension in the cable when the elevator is
4 answers
asked by
physics
4,561 views
If a car is accelerating downhill under a net force of 3,674N, what force must the brakes exert to cause the car to have a
5 answers
asked by
steve
3,581 views
10. A 3 kg block moves up a 40° incline with constant speed under the action of a 26N force acting up and parallel to the
5 answers
asked by
Anonymous
2,675 views
A 37.0-kg crate rests on a level floor. A horizontal force of 50.0 N accelerates the crate at 1.00 m/s2.
Calculate the frictional
3 answers
asked by
Mike
1,678 views
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