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Classical mechanics
Page 3
Questions (773)
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 420 N. For the first 13 m the
4 answers
asked by
Cara
887 views
A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in
3 answers
asked by
Shreya
1,173 views
A bug starts walking away from the top of a spherical ball of ice and will start to slip when the normal force exerted on it
3 answers
asked by
wayne
633 views
A 283 g air track glider moving at 0.69 m/s on a 2.4 m long air track collides elastically with a 467 g glider at rest in the
4 answers
asked by
David
1,348 views
A 540 kg roller coaster starts from rest at point A (Fig. 6.29) and rolls freely (no friction) to point B where the brakes are
3 answers
asked by
Salvador Dinga
559 views
a cannon with a barrel velocity of 140 m/s launches a cannonball horizontally from a tower. neglecting air resistance how far
4 answers
asked by
Anonymous
2,496 views
An object is solid throughout. When the object is completely submerged in ethanol alcohol., its apparent weight is 15.2 N. When
4 answers
asked by
david
1,354 views
Two blocks of mass m1 = 7 kg and m2 = 6 kg connected with a light in-extensible string are placed on a horizontal table. A third
4 answers
asked by
physics nerd
848 views
A 4.2 kg object is subjected to two forces,
F~ 1 = (2.1 N) ˆı + (−1.7 N) ˆ and F~ 2 = (3.2 N) ˆı + (−11.2 N) ˆ.
3 answers
asked by
LUCY
904 views
A bullet with a mass of 28 g is fired from a 2.8-kg gun that is stationary, but free to recoil. After the bullet is fired, the
3 answers
asked by
Mike
2,866 views
A car of mass 1300 kg is driving along a road at speed of 28m/s. As it approaches some traffic lights, the lights change to red
3 answers
asked by
Sean
725 views
Estimate the change in gravitational potential energy when a person with mass 95kg rise from bed to a standing position.
4 answers
asked by
phys 220
3,069 views
A 950-kg race car can drive around an unbanked turn at a maximum speed of 46 m/s without slipping. The turn has a radius of 120
3 answers
asked by
sammy
2,959 views
Three uniform spheres of masses m1 = 3.50 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the corners of a right triangle (see
3 answers
asked by
Josie
3,425 views
The system shown in the figure is held initially at rest. Calculate the angular acceleration of the system as soon as it is
3 answers
asked by
James
1,072 views
Sir Isaac Newton discovered that a force that gives a body of mass 1kg an acceleration of 1 meter per second is known as
3 answers
asked anonymously
32 views
a system consists of four particles how many terms appear in the expression for the total gravitational potential energy of the
4 answers
asked by
Mary
3,394 views
A 9.0 x 10^-3 kg ball is attached to a 3.6 x 10^-2 mass (M) by string that passes through a hole in a horizontal frictionless
3 answers
asked by
cel
1,130 views
A hockey puck struck by a hockey stick is given an initial speed v0 in the positive x-direction. The coefficient of kinetic
2 answers
asked by
Anonymous
1,255 views
Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be
7 answers
asked by
yamomma
244 views
A golf ball at a mini golf course travels 4.2 m along a carpeted green. When the ball reaches the hole 3.0 s later, its speed is
4 answers
asked by
NoNo100
1,460 views
A cart of mass 340 g moving on a frictionless linear air track at an initial speed of 1.2 m/s undergoes an elastic collision
4 answers
asked by
Chris
2,044 views
A solid cone of uniform density ρ has a base radius a and a height h. Now the top h/2 is cut by a plane parallel to the base
3 answers
asked by
Susie
426 views
show that mgh = 1/2mv^2 for a simple pendulum
4 answers
asked by
olayiwola damilare
385 views
Four identical particles each have charge q and mass m. They are released from rest at the vertices of a square of side L. How
1 answer
asked by
kinglogic
367 views
A system exhibits simple harmonic motion with a frequency of 0.85 cycles per second. Calculate the acceleration experienced by
3 answers
asked by
Mea
708 views
the velocity time graph of a car start from rest and it accelerate uniformly at a rate 3m/s2 for 5seonds if attain the velocity
2 answers
asked by
simeon
697 views
A 2.84 × 103 kg car requires 5.4 kJ of work to move from rest to some final speed. During this time, the car moves 20.4 m.
Negle
3 answers
asked by
Lauren
1,750 views
A 2kg ball at rest experiences two forces
The force on the left is 13.2 N and the force on the right is 15.4 N Calculate the net
4 answers
asked by
Coleson
949 views
A block of mass m = 0.605 kg is fastened to an unstrained horizontal spring whose spring constant is k = 67.5 N/m. The block is
3 answers
asked by
twill
1,463 views
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.8m above the ground, it
3 answers
asked by
Garrett
673 views
How far apart must two protons be if the magnitude of the electrostatic force acting on either one due to the other is equal to
4 answers
asked by
Guy
1,493 views
A coin is placed 33 cm from the center of a
horizontal turntable, initially at rest. The turntable then begins to rotate. When
3 answers
asked by
Anonymous
688 views
A ferry is crossing a river.The ferry is headed due north with a speed of 2.5 m/s relative to the water and the river's velocity
3 answers
asked by
alice
618 views
An object is traveling in a straight line in space.No forces are affecting it. What will happen to the object's motion?
4 answers
asked by
Josie
1,501 views
The pendulum bobs in the figure are made of soft clay so that they stick together after impact. The mass of bob B is 14 times
4 answers
asked by
Angelina
2,053 views
A painter on a wooden plank drops a 1.50-kg can of paint from a height of 6 m. Find the following: (A) KE when the height is 4 m
4 answers
asked by
Tiziana
1,873 views
An Earth satellite moves in a circular orbit 824 km above Earth's surface with a period of 101.2 min. What are (a) the speed and
2 answers
asked by
Pat Rick
631 views
Dirk pushes on a packing box with a horizontal force of 67.0 N as he slides it along the floor. The average friction force
4 answers
asked by
anna
739 views
A non-rotating spherical planet with no atmosphere has a mass M and radius R. A particle is fired off from the surface with a
4 answers
asked by
Avery
2,307 views
A 1kg mass is suspended from a vertical spring with a spring constant of 100 N/m and the equilibrium position is noted. The
3 answers
asked by
susanna
1,127 views
how to prove prove m = m0 / sqrt(1 - v^2/c^2)?
2 answers
asked by
Marinho
1,009 views
Figure 8-31 shows a ball with mass m = 1.0 kg attached to the end of a thin rod with length L = 0.56 m and negligible mass. The
4 answers
asked by
dawn
1,694 views
A 15 g bullet is fired from a rifle, it takes 2.50×10^-3 s for the bullet to travel the length of the barrel, and it exits with
3 answers
asked by
Melusi
177 views
a physical pendulum consists of a uniform solid disk (of radius R = 42.0 cm) supported in a vertical plane by a pivot located a
3 answers
asked by
kylie
862 views
Describe two dimensions of the motion of an object in a circle due to centripetal force. Explain why putting them together
2 answers
asked by
Sauce
244 views
study the motion of a particle of mass m in a central potential U(r) = γr^2 with
γ > 0. a) write the equations of motion in
3 answers
asked by
pete
440 views
A palm fruit drops to the ground from the top of a tree 5m tall. How long does it take to reach the ground.
4 answers
asked by
Shedrach
304 views
The 60.0 kg skier shown below is skiing down a 35.0 degree incline where the magnitude of the friction force is 38.5N
a. what is
3 answers
asked by
:D
587 views
A particle of mass a moves along a space curve defined by
r(t) =(4t^2 - t^3)i + 5tj - (t^4 - 2)k Find the torque about the
3 answers
asked by
Aryaa
521 views
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Parent Categories (4)
Dynamics
Kinematics
Mechanics
Physics