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Forces and Acceleration
Page 2
Questions (140)
Based on the third law motion of equal and opposite forces, a mass should never accelerate because the net force on it will
3 answers
asked by
Benji
577 views
An elevator with a wieght of 27.8 kN is given an upward acceleration of 1.22 m/s^2 by a cable. a) what is the tension in the
2 answers
asked by
Chris
1,008 views
Suppose a 63-kg boy and a 44-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
2 answers
asked by
Madison
145 views
Is this right?
Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of exerting 1350
1 answer
asked by
Anonymous
450 views
You place a 6.9 kg television set on a spring scale.
The acceleration of gravity is 9.8 m/s2 . If the scale reads 75.43 N, what
1 answer
asked by
Jane
350 views
A box and one force vector, F1 is shown. F1 = + 10 N. If the mass of the box is 3 kg, what is the magnitude and direction of a
2 answers
asked by
danny
590 views
Rick and Glen are cornered by zombies as they tend to be in each episode. In this particular episode, Glen fires a grappling
2 answers
asked by
Luna
628 views
A person with a body mass of 65 kg was running over level ground with a strong tailwind, while
wearing a 10 kg weighted vest. The
2 answers
asked by
Brendan
501 views
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the
1 answer
asked by
Anonymous
663 views
Calculate the total constant force needed to accelerate a vehicle with mass 1400kg and tractive resistance of 320N from 19km/h
1 answer
asked by
David
380 views
Please help,
A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree,
1 answer
asked by
Kathy
1,024 views
Nobel and Maaham are wearing inline skates. Nobel has a mass of 62kg and pushes Maaham, whose
mass is 54kg. Maaham accelerates at
3 answers
asked anonymously
57 views
A scientist wanted to move a golf ball and a bowling ball to both reach 15 mph. What would the scientist have to do differently
3 answers
asked anonymously
72 views
An airplane of mass 2800 Kg has just lifted off the runway. It is gaining altitude at a constant 2.3 M/s while the horizontal
1 answer
asked by
John
413 views
A player uses a hockey stick to increase the speed of a 0.200 kg hockey puck by 6 m/s in 2 seconds. How much did the hockey puck
4 answers
asked by
Aj
645 views
Physics - Unit V Challenge Problem
No matter how bad your day is going, here's proof that things could be A LOT worse. This is a
2 answers
asked by
Diyan
553 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
1 answer
asked by
Tiffany
684 views
Calculate the net force, acceleration, or mass in each situation:
a) A 72 kg rugby player accelerates at 1.6 m/s2 [forward]. b) A
3 answers
asked anonymously
47 views
Imagine a landing craft approaching the surface of the moon of a distant planet. If the engine provides an upward force (thrust)
2 answers
asked by
Sam
664 views
Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a force of approximately
2 answers
asked by
Tiffany
599 views
Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a force of approximately
1 answer
asked by
Mia
457 views
If m_A=15.0kg and m_B =3.0kg, determine the magnitude of the acceleration of each block.
If initially m_A is at rest 1.300m from
2 answers
asked by
Alyssa
802 views
I need help with this problem because it is confusing me. I tried to anwer it, though, so can someone please correct me if I am
2 answers
asked by
mTaq14
486 views
Pilots of high-performance fighter planes can be subjected to large centripetal accelerations during high-speed turns. Because
3 answers
asked by
rash
1,809 views
as a baseball player strikes the ball with his batt the 1kg bat applies an average force of 250N on the .15kg baseball for .2
3 answers
asked by
Ali
1,430 views
The forces in the figure below are acting on a 2.1 kg object. Find the values of ax and ay, the x and y components of the
1 answer
asked by
kev
1,231 views
An 80 kg man stands in an elevator. What force does the floor of the elevator exert on the man if
a) the elevator is stationary?
2 answers
asked by
John Scott
1,159 views
A research balloon of total mass 445 kg is descending vertically with a downward acceleration of 1.3 m/s2. How much ballast must
1 answer
asked by
Brandon
1,150 views
Question 6
Trial Force (N) Acceleration (m/s^2) 1 1 0 N 2.5 2 12 3 3 22 5.5 Students are running an experiment in which they are
1 answer
asked anonymously
35 views
Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of
1 answer
asked by
Tim
1,123 views
A 72 N force accelerates mass m1 by 5.0 m/s^2. The same force acts on another mass m2. What acceleration will the same force
3 answers
asked by
kyla
1,075 views
Tarzan wights 820N, swings from a cliff at the end of a 20m vine that hangs from a high tree limb and initially makes an angle
1 answer
asked by
Dee
1,083 views
A string connecting a car of a certain mass, x1, on an air track is connected to another mass, x2, by a string over a pulley. If
1 answer
asked by
Emily
1,019 views
Three astronauts, propelled by jet backpacks, push and guide a 131 kg asteroid toward a processing dock, exerting the forces
3 answers
asked by
kristy
996 views
A 42kg person on a merry-go-round is traveling in a circle with a radius of 2m at a speed of 5 m/s. It asked for the
1 answer
asked by
Michelle
938 views
Two dogs pull on a toy. One pulls with a force of 10 N, the other with a force of 15 N.
(a) In what relative directions can the
1 answer
asked by
Hannah
924 views
"Only two forces act on an object (mass = 3.90 kg), as in the drawing. (F = 76.0 N.) Find the magnitude and direction (relative
3 answers
asked by
Allie
913 views
Two forces are applied to a 0.5 kg hockey puck causing it to accelerate. The first force has a magnitude of 10.0 N and is
2 answers
asked by
Mark
910 views
an 8-newton foce is applied to a 4-kg object. what is the rate of acceleration. a.4 meters per second
b.8 meters per second c.2
2 answers
asked by
Gabriella
887 views
A man is sitting in a bosun's chair that dangles from a massless, frictionless pulley and back down to the mans's hand. The
2 answers
asked by
**chocolatekisses
915 views
An empty elevator of mass 2.7x10^2kg is pulled upward by a cable at an acceleration of 1.2m/s. What is the tension in the cable?
2 answers
asked by
Jill
865 views
what force is necessary to accelerate a
70kg object at rate of 4.2 m/s2
3 answers
asked by
paul
864 views
A 38 kg girl and an 8.4 kg sled are on the frictionless ice of a frozen lake, 16 m apart bu connected by a rope of negligible
2 answers
asked by
johnny
852 views
The cable supporting a 2150-kg elevator has a maximum strength of 2.2×104 N .
What maximum upward acceleration can it give the
2 answers
asked by
henry
816 views
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, as shown.
1 answer
asked by
Kaylee
785 views
A student pulls on a rope attached to a box of books with a mass of 35.0 kg and moves the box up a ramp at 12 degrees with the
1 answer
asked by
Mischa
784 views
A woman stands on a scale in a moving elevator. Her mass is 65.0 kg, and the combined mass of the elevator and scale is an
1 answer
asked by
BrookeNeed
812 views
When a falling meteor is at a distance above the Earth's surface of 2.78 times the Earth's radius, what is its free-fall
2 answers
asked by
Jessica
739 views
Two workers are moving a slab of ice (m = 290 kg) across the factory floor. As seen from above, one worker exerts a force of 415
2 answers
asked by
Tessa
730 views
Forces of 10.6 N north, 20.8 N east, and 14.3 N south are simultaneously applied to a 3.76 kg mass as it rests on an air table.
7 answers
asked by
Mike
685 views
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Parent Categories (16)
Circular motion
Classical mechanics
Dynamics
Force and Motion
Forces and Motion
Mechanics
Motion
Motion and Forces
Motion in two dimensions
Newton's Laws
Newton's Laws of Motion
Newton's Third Law
Newton's Three Laws of Motion
Newtonian Mechanics
Physics
Projectile Motion