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Classical mechanics
Page 9
Questions (773)
A child plays on a bungee cord and oscillates with a certain frequency f. An adult with a mass that is 17.8 times greater than
1 answer
asked by
Anonymous
994 views
A uniform rod of mass M and length d is initially at rest on a horizontal and frictionless table contained in the xy plane, the
2 answers
asked by
tyger2020
1,010 views
a lift is moving downward with uniform acceleration to measure the acceleration a person in the lift drops a coin 6 ft above the
2 answers
asked by
ARS
987 views
What is the centripetal acceleration of the Moon? The period of the Moon's orbit about the Earth is 27.3 days, measured with
2 answers
asked by
Jeremy
1,004 views
A man pulls a 50 kg box with an acceleration of 2m/s^2 across the floor. He applies a 200 N force at an angle of 30 degrees what
1 answer
asked by
Tori
982 views
The earth orbits the sun once a year (3.16 107 s) in a nearly circular orbit radius 1.50 1011 m. With respect to the sun,
2 answers
asked by
john
987 views
A round body of mass M, radius R, and moment of inertia I= BMR^2 is rolling without slipping. Its kinetic energy can be
1 answer
asked by
Jason
960 views
1-The position of a particle moving along the x axis is given by x=t^2-〖2t〗^3-6, where x is in meters and t in seconds. What
3 answers
asked by
mustafa
970 views
A 9.10-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is
1 answer
asked by
Anonymous
969 views
You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80
1 answer
asked by
chloe
949 views
Particles 1 and 2, each of mass m, are attached to the ends of a rigid massless rod of length L1 + L2, with L1 = 19 cm and L2 =
2 answers
asked by
Calvin
939 views
a particle of mass m moves in a x-y plane. The coordinates of the particle at any instant are given by x = acos(wt) and y =
1 answer
asked by
Sarsi
922 views
An object is formed by attaching a uniform, thin rod with a mass of mr = 7.42 kg and length L = 4.88 m to a uniform sphere with
1 answer
asked by
katie
921 views
Three uniform spheres of masses m1 = 3.50 kg, m2 = 4.00 kg, and m3 = 5.50 kg are placed at the corners of a right triangle (see
3 answers
asked by
Anonymous
930 views
Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 70.0 N.) Find the magnitude and direction (relative
1 answer
asked by
Michelle
906 views
A 2.5 kg falcon soaring at a height of 500 meters has a certain potential energy. Now suppose the
falcon were carrying a 1.0 kg
2 answers
asked by
Anon
903 views
An object is dropped from a height H above the ground. This free-falling object requires 0.904 s to travel the last 34 m before
2 answers
asked by
maura
944 views
Three balls A, B, and C, with masses of 3 kg, 1 kg, and 1 kg, respectively, are connected by massless rods. What are the
2 answers
asked by
Samuel
936 views
A circus performer throws an apple toward a hoop held by a performer on a platform (see figure below). The thrower aims for the
2 answers
asked by
Dr. Neutron
906 views
A 4.40-kg model rocket is launched, shooting 53.0 g of burned fuel from its exhaust at an average velocity of 650 m/s. What is
1 answer
asked by
Eddie
892 views
It is desired to move a small, 50 kg cat in outer space by strapping a lamp, which emits 100 W of blue light to it. If the cat
1 answer
asked by
Anonymous
898 views
A water balloon is dropped from the top of a building. Assume the balloon does not break when it strikes the ground. If the
1 answer
asked by
Maria
905 views
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at
2 answers
asked by
Luis
906 views
Two blocks of masses m1 = 4.5kg and m2 = 6.5kg resting on a frictionless area connected by light inextensible chord as shown. A
2 answers
asked by
Camz
899 views
A small mass m swings in a horizontal circle of radius r at the end of a string of length Li and
negligible mass, which makes an
2 answers
asked by
Anonymous
902 views
A 250-gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the
1 answer
asked by
Jenny
884 views
An electron is released from a distance of 2 cm from a proton. How fast will the electron be going when it is .5 cm from the
2 answers
asked by
Jessica
881 views
A runner of mass m = 58 kg and running at 2 m/s runs as shown and jumps on the rim of a playground merry-go-round which has a
2 answers
asked by
Anonymous
882 views
a box with a mass of 25kg is lifted (without acceleration) through a height of 2.0m, in order to place it upon the shelf of a
7 answers
asked by
ryan
893 views
a 1500kg car travelling east with a speed of 20m/s collides at an intesection with a 2500kg van travelling south at a speed of
1 answer
asked by
takunda
882 views
A 0.250-kg ice puck, moving east with a speed of 5.26m/s , has a head-on collision with a 0.990-kg puck initially at rest.
2 answers
asked by
david
882 views
A body is projected at an angle 30 degree to the horizontal with kintic energy E.The kinetic energy at the topmost point is?
3 answers
asked by
Shahrukh
876 views
A 56.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force
1 answer
asked by
Anonymous
881 views
Is Coulomb's law consistent with Newton's Third Law? In particular, how do
F^elec A-->B and F^elec B--->A compare in magnitude?
2 answers
asked by
Aliasa
854 views
1.A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius
3 answers
asked by
Antone
865 views
An object is projected vertically upwards with a velocity of 28m/s. Two seconds later, another object is thrown vertically
3 answers
asked by
Lola312
876 views
A 10 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 86 N parallel to the incline,
1 answer
asked by
Bob
875 views
Two particles with masses m and 3m are moving toward each other along the x axis with the same initial speeds Vi. Particle m is
1 answer
asked by
ace
857 views
Stuck in the middle of a frozen pond with only your physics book, you decide to put physics in action and throw the 6-kg book.
2 answers
asked by
Anonymous
874 views
A monkey of mass m climbs a rope slung over a light frictionless pulley.The opposite end of the rope is tied to a block of Mass
1 answer
asked by
raven
866 views
A hockey puck of mass m = 120 g is attached to a string that passes through a hole in the center of a table, as shown in the
1 answer
asked by
jyothi
840 views
if a proton and an electron are released when they 2.0 x 10^-10 m apart, find the initial acceleration of each of them
4 answers
asked by
yanis
851 views
In the figure below, the scale on which the 63 kg physicist stands reads 236 N. How long will the cantaloupe take to reach the
4 answers
asked by
Yes
841 views
A 2.00kg solid sphere of radius 5.00cm rolls down a 20 degrees inclined plane starting from rest.
(a) What is the magnitude of
1 answer
asked by
Nick
865 views
A mass m = 76.0 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 19.7 m and
2 answers
asked by
Anonymous
843 views
"A small 0.5 kg object moves on a frictionless horizontal table in a circular path of radius 1 meter. The angular speed is 6.28
1 answer
asked by
Seth
840 views
A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9×107m . The magnitude of the
1 answer
asked by
cuzer
837 views
A ball is dropped from a helicopter which is descending at 1.5 m/s. After 2 seconds, what are
a) the the velocity of the ball,
3 answers
asked by
john smith
827 views
To better comprehend the magnitude of the gravitational force between Earth and the moon, pretend gravity is turned off and the
1 answer
asked by
Lila
791 views
Show by algebraic reasoning that your gravitational acceleratoin toward an object of mass M a distance d away is a = GM/d
2 answers
asked by
Riley
803 views
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Parent Categories (4)
Dynamics
Kinematics
Mechanics
Physics