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Force and Motion
Page 4
Questions (1,713)
a dockworker applies a constant horizontal force of 80 N to a block of ice on a smooth horizontal floor. The friction force is
5 answers
asked by
muqadir
10,153 views
A softball having a mass of 0.25 kg is pitched at 95 km/h. By the time it reaches the plate it may have slowed 10%. neglecting
4 answers
asked by
joyce
3,702 views
A 32.0kg crate is initially moving with a velocity that has magnitude 3.92m/s in a direction 37.0 ∘ west of north.How much
5 answers
asked by
Anonymous
4,493 views
A block lies on a smooth inclined plane tilted at an angle of 35◦ to the horizontal.
a) Draw the free-body diagram for the
5 answers
asked by
Anonymous
3,688 views
A 14.9-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 67.7-N
4 answers
asked by
James
1,698 views
The man pushes/pulls with a force of 200N. The child and the slide combo has a mass of 30 kg and coefficient of friction is
4 answers
asked by
Thokozanitausi
3,039 views
true or false
If a net force acts on an object, the object's speed will change. An object's velocity will change if a net force
5 answers
asked by
molly
7,074 views
You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain
4 answers
asked by
Veronica
4,668 views
A helicopter weighs 3920 newtons, caculated the force on it if it is ascending up at a rate of 2m/s squre ,what wil b force on
10 answers
asked by
sam
6,618 views
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and
4 answers
asked by
tcc
6,700 views
A certain sports car accelerates from 0 to 60 mph in 9.0 s (average acceleration = 3.0
m/s2). The mass of the car is 1354 kg. The
6 answers
asked by
Anonymous
4,449 views
A force of magnitude Fx acting in the x-direction on a 2.50-kg particle varies in time as shown in the figure below.
(a) Find the
4 answers
asked by
sally
7,023 views
A force F = 119 N acts at an angle α = 31◦
with respect to the horizontal on a block of mass m = 22.5 kg, which is at rest on
4 answers
asked by
andrew
2,413 views
A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 140
4 answers
asked by
Amy
1,360 views
A 10.0 kg barrel is lifted by pulling up on a rope. The barrel accelerates at 1.50 m/s2. Find the force of tension on the rope.
5 answers
asked by
Henry
2,367 views
In a baseball a pitcher can accelerate a .15kg ball from rest to 98 mi/h in a distance of 1.7m
a) what is the average force
5 answers
asked by
Lisa
6,736 views
A 115-N sign is supported by two ropes. One rope pulls up and to the right 26.5° above the horizontal with a tension T1, and
4 answers
asked by
chris browning
4,788 views
Before going into orbit, an astronaut has a mass of 55 kg. When in orbit, a measurement determines that a force of 67.1 N causes
4 answers
asked by
David
1,175 views
A blood sample placed in a centrifuge is subjected to a force of 4.8 10-11 N when the centrifuge is operated at 126 rev/s. What
4 answers
asked by
Kiki
1,427 views
12 kg wagon is being pulled at an angle of 38o above horizontal. What force is applied to the wagon if it accelerates from rest
5 answers
asked by
silverback - sorry Repost for Damon
2,503 views
a cyclist does work at the rate of 500w while riding. how much force does her foot push with, when she is traveling at 8.0 m/s?
5 answers
asked by
ty
2,557 views
A horizontal force of 100 N is required to push a piece of furniture across a floor at a constant velocity. what is the net
4 answers
asked by
m
3,037 views
How would the force of gravity between two masses be affected if the separation distance between them were the following?
4 answers
asked by
fatimah
4,491 views
A force of 240.0 N causes an object to accelerate at 3.2 m/s^2. What is the mass of the object?
0.013 kg 75 kg 240 kg 786 kg
5 answers
asked by
Tiara
2,665 views
A box has a mass of 0.215 kg. It is on a very smooth (frictionless) horizontal surface and is acted upon by a force of 2.27 N at
3 answers
asked by
Amy
738 views
A person in a kayak starts paddling, and it accelerates from 0 to 0.63 m/s in a distance of 0.45 m. If the combined mass of the
4 answers
asked by
Anonymous
2,847 views
The speed of the head of a redheaded woodpecker reaches 3.4 m/s before impact with the tree. The mass of the head is 0.060 kg
4 answers
asked by
David
2,028 views
A man pushes on a piano of mass 180 kg so that it slides at a constant velocity of 12.0 cm/s down a ramp that is inclined at
4 answers
asked by
Carmen
3,286 views
When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a
4 answers
asked by
lily
865 views
The question is a child slides down a slide with a 28 degree incline and at the bottom her speed is precisely half what it would
4 answers
asked by
perry
7,157 views
A man cleaning his apartment pushes a vac- uum cleaner with a force of magnitude 57.6 N. The force makes an angle of 25.3◦
5 answers
asked by
Edgar
1,673 views
A piece of luggage is being loaded onto an airplane by way of an inclined conveyor belt. The bag, which has a mass of 10.0 kg,
4 answers
asked by
Jenny
3,953 views
A net force of 5.34 N acting for 4.23 s on a mass initial at rest, causes it to travel 4.75 m in a straight line. What is the
4 answers
asked by
Erin
1,227 views
A block is pushed with a force of 15 newtons and accelerates at a rate of 3.0 m/s2. How much force would be needed to accelerate
4 answers
asked by
Anonymous
176 views
A constant net force of 20 N is applied to a 32 kg car, causing it to speed up from 4.0 to 9.0 m/s. How long is the force
4 answers
asked by
Zain
2,690 views
A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1-kg block (m2) by a massless string. The pulley is massless
3 answers
asked by
Ted
538 views
A net force of 100 newtons is applied to a 20 kg cart that is already moving at 3 meters per second. The final speed of the cart
4 answers
asked by
karen
3,643 views
1)The Earth exerts an 710 N gravitational force
on a man. What force does the man exert on the Earth? Answer in units of N 2)If a
4 answers
asked by
Sally
1,464 views
How much work is done to move a 1400 kg car from rest to 25 m/s.If this takes place over a
distance of 130 m, what is the average
4 answers
asked by
Aditya
1,936 views
a.the gravitational force between 2 electrons 1.00m apart is 5.42x10^-71 N. Find the mass of an electron.
b.2 spherical balls are
4 answers
asked by
Anonymous
4,854 views
if the ball that was thrown to a fried has a mass of 0.15kg and it accelerates at 20m/s, what force did you exert on the ball?
3 answers
asked by
Marilyn
497 views
Grant accelerates a 1kg ball 5.0m/s2 horizontally. The vertical acceleration of the ball is zero. The force of gravity is the
4 answers
asked by
aaron
3,140 views
please check:
1. A piece of chalk is dropped by a teacher walking at a speed of 1.5 m/s. From the teacher's perspective, the
4 answers
asked by
y912f
3,034 views
1. Which statement best describes force?
B. Force is a vector quantity that measures both direction and magnitude of a push or
7 answers
asked by
Anonymous
376 views
a 4 kg block tied to another block, is pulled to the right by a tension force t=78 n the. The system accelerates to the right at
3 answers
asked by
Anonymous
475 views
A boxer is punching the heavy bag. The time of impact of the glove with the bag is 0.10 s. The mass of the glove and his hand is
4 answers
asked by
BT
2,364 views
A constant net force of 1500 N gives a toy rocket an acceleration of 2.5 m/s2. what is the mass in kg?
4 answers
asked by
bob
2,008 views
A car moving at a speed of 48.0 km/h accelerates 100.0 m up a steep hill, so that at the top of the hill its sped is 59.0 km/h.
5 answers
asked by
lalaglaze
2,456 views
He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s2. How much force does it take for him to
4 answers
asked by
love o
228 views
the load which a crane can lift up is directly proportional to the mass and inversely proportional to the height throught which
4 answers
asked by
Abbie
379 views
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