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Dynamics
Page 4
Questions (1,166)
A 2200. Kg vehicle is traveling at 26 m/s what is the force needed to stop it in 21 seconds?
4 answers
asked by
Anon
1,539 views
A child uses a rubber band to launch a bottle cap at an angle of 40.0° above the horizontal. The cap travels a horizontal
4 answers
asked by
blaze
1,933 views
A simple Atwood’s machine uses a massless
pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is
4 answers
asked by
Maxx
4,624 views
A 19 kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 23.2 degrees the
4 answers
asked by
Anonymous
2,903 views
what impulse is needed to stop a 45 g mass traveling at 42 m/s?
4 answers
asked by
Jenn
2,371 views
a ball thrown with an initial velocity of (10i+15j)m/s. when it reaches the top of it trajectory, neglecting air resistance,
6 answers
asked by
amlakinesh
2,134 views
1. a 63.0-kg sprinter, starts a race with an acceleration of
4.200 m/s 2 4.200m/s2 . What is the net external force on him? 2.
4 answers
asked by
Anna
1,108 views
a body of mass3kg and body of mass 2kg are dropped simultaneously from height of 14.9 m calculate their momenta and their
4 answers
asked by
DEEPI
2,341 views
a girl on a swing 2m above the ground at her highest point and 1m above the ground at her lowest point. what is the girls
4 answers
asked by
Anonymous
4,100 views
A little red wagon with mass 8.00 moves in a straight line on a frictionless horizontal surface. It has an initial speed of 3.80
4 answers
asked by
Anonymous
3,001 views
A 69 kg skier speeds down a trail, as shown in the figure. The surface is smooth and inclined at an angle of θ = 17° with the
3 answers
asked by
Beginner Phys114
984 views
A 36 kg child steps on a scale in an elevator that starts at rest. The elevator then accelerates downward at 0.6 meters per
3 answers
asked by
john
630 views
The racing car has a mass of 1250kg. When the brake pedal is pushed down a constant braking force of 10,000 N is exerted on the
4 answers
asked by
Anon
1,542 views
1)An elevator is moving down with an acceleration of 1.40 m/s^2. A 14.5 kg block hangs from a spring balance fixed to the roof
4 answers
asked by
Jon
1,409 views
Two blocks are connected by a light string that passes over a frictionless pulley. The system is released from rest while m2 is
4 answers
asked by
Anonymous
1,305 views
A car is moving at a constant speed of 20 ms-1. The force retarding its motion is 500 N. Calculate the engine power of the car
4 answers
asked by
Dana Sofa
848 views
The five engines of the first stage of a launch vehicle provide a total thrust of
31.5 x 106 newtons to the space vehicle (launch
4 answers
asked by
baz
1,066 views
A net force of 30 N is applied to a 10 kg object, which starts at rest. What is the magnitude of its momentum after 3.0 seconds?
4 answers
asked by
Christina
1,267 views
Mass mA rests on a smooth horizontal surface, mB hangs vertically.If m_{\rm{A}}=13.0 kg and m_{\rm{B}}=3.0 kg in the figure ,
4 answers
asked by
Anonymous
4,602 views
the small 2kg block A slides down the curve path and passes the lowest point B with a speed 4 m/s. If the radius of the
4 answers
asked by
samad
3,068 views
A movie stunt man (mass 82.3 kg) stands on a window ledge 5.69 m above the floor. Grabbing a rope attached to a chandelier, he
4 answers
asked by
Charlie
1,753 views
A sphere of mass 3.0X10^-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a
3 answers
asked by
Amy
3,770 views
Block A with mass 4.0 kg, sits on a friction less table. Block B, with mass 2.0 kg, hangs down from a rope connected through a
3 answers
asked by
sea lively
857 views
An 89.5 kg fullback moving east with a speed of 5.7 m/s is tackled by a 81.5 kg opponent running west at 2.58 m/s, and the
4 answers
asked by
Help please
1,982 views
An Olympic turkey moving at 20.0 m/s down a 30.0° slope encounters a region of
wet snow and slides 145 m before coming to a
4 answers
asked by
ms
1,209 views
Two blocks are connected by a string over a frictionless,
massless pulley such that one is resting on an inclined plane and the
4 answers
asked by
Haff
1,163 views
A child, starting from rest at the top of a
playground slide, reaches a speed of 7.0 meters per second at the bottom of the
4 answers
asked by
ashley --- HELP PLEASEE!!!
7,151 views
A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle of 25° from the vertical. If
4 answers
asked by
icy
3,645 views
A sky diver of mass 80.0 ks jumps from a slow-moving aircraft and reaches a terminal speed of 50.0 m/s. a) What is the
3 answers
asked by
Jean
3,993 views
A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down,
4 answers
asked by
Stefan
164 views
You have been hired to help improve the material movement system at a manufacturing plant. Boxes containing 16 kg of tomato
4 answers
asked by
Mike
2,713 views
A ball of mass 0.15kg is dropped from a height of 1.0m onto a flat surface and rebounds to a height of 0.35m.
Calculate: (a) The
4 answers
asked by
urgent help needed
3,082 views
A hot-air balloon is rising straight up with a speed of 3.0 m/s. A ballast bag is released from rest relative to the balloon
4 answers
asked by
Mike
1,324 views
A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway truck ramp
4 answers
asked by
justin
2,281 views
A car rounds a banked curve where the radius of curvature of the road is R=100m., the banking angle 10 degrees and the
4 answers
asked by
Annette
1,439 views
A 190-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope
4 answers
asked by
Ashley
3,207 views
A 0.22 calibre rifle shoots a bullet of mass 1.8 g with a muzzle velocity of 500 m/s. If the barrel is 25 cm long, what is the
4 answers
asked by
Aria
1,748 views
Two masses, m1=3kg and m2=2kg, are suspended with a massless rope over a pulley of mass M = 10kg. The pulley turns without
4 answers
asked by
Jake
3,020 views
A 15 g bullet strikes and embeds in a 2.8 kg block suspended at the end of a 1 m string. After the collision the string rises to
3 answers
asked by
joe
983 views
Suppose you carry a bag of groceries weighing 127 N from your car to your kitchen, a distance of 48 m, without raising or
4 answers
asked by
Kellie
1,503 views
A 62.6 kg astronaut is on a space walk when the tether line to the shuttle breaks. The astronaut is able to throw a 11.0 kg
4 answers
asked by
bill
1,271 views
An object at rest explodes into three pieces of equal mass.One moves east at 20.0 m/s,a second moves southeast at 30.0 m/s. What
4 answers
asked by
miss sixty
2,785 views
A spring with a spring constant of 16 N-m is compressed 0.2 m. What is the restoring force on the spring?
A. -1.25N B. -3.2N C.
3 answers
asked by
Madison
107 views
Two blocks are connected by massless string that is wrapped around a pulley. Block 1 has a mass m1=4.20 kg, block 2 has a mass
6 answers
asked by
Anonymous
1,535 views
A 30 kg child sits in a swing supported by two chains, each 1.4 m long.
(a) If the tension in each chain at the lowest point is
3 answers
asked by
alicia
2,627 views
m1 = 1.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 60 N/m) as shown in
4 answers
asked by
Amelia
902 views
A 59-kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and
4 answers
asked by
matt
1,519 views
The puck in the figure below has a mass of 0.160 kg. Its original distance from the center of rotation is 40.0 cm, and it moves
3 answers
asked by
anonymous
1,255 views
A 1.0-kg mass (mA) and a 7.0-kg mass (mB) are attached to a lightweight cord that passes over a frictionless pulley. The hanging
4 answers
asked by
javane
2,406 views
A golf ball and a ping-pong ball are dropped in a vacuum chamber. When they have fallen halfway down, they have the same...
3 answers
asked by
Tammy
2,891 views
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