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Mechanics
Page 6
Questions (40,031)
a test car of mass 1250 kg is traveling at a speed of 72 kmph, when it is suddenly braked by locking the wheels. the average
4 answers
asked by
rajat
2,187 views
A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a
4 answers
asked by
lost
5,953 views
A solid cylinder with a radius of 5.08 cm starts from rest at the top of a 12m long ramp inclined 20.3 degrees above the
5 answers
asked by
Anonymous
2,520 views
The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in., the wheel sprocket a
4 answers
asked by
monic
11,349 views
Three objects are moving along a straight line as shown in the figure. Taking the positive direction to be to the right, what is
7 answers
asked by
Anonymous
14,795 views
A person hits a 45-g golf ball. The ball comes down on a tree root and bounces straight up with an initial speed of 14.0 m/s.
4 answers
asked by
Caitlin
2,295 views
A submarine at the surface of the ocean makes an emergency dive, its path making an angle of 21deg with the surface.
a. If it
5 answers
asked by
trigofunctions
4,748 views
A net force is applied to a moving object, which statement best describes the effect of the force
4 answers
asked by
Star
818 views
An archer pulls the bowstring back for a distance of 0.400 m before releasing the arrow. The bow and string act like a spring
4 answers
asked by
Albee
5,498 views
If the coefficient of sliding friction for steel on ice is 0.05, what force is required to keep a man weighing 150 lbs moving at
5 answers
asked by
Angel
3,600 views
A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end of a court. Her racket was traveling at 65
10 answers
asked by
Ieasha30
2,147 views
A body is thrown vertically upward from the ground with an initial velocity of 96 ft/sec. Find the maximum height attain by the
5 answers
asked by
gillian
5,888 views
A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end,
7 answers
asked by
Jennifer
4,419 views
The force which is required to move an object of mass 500g to a distance of 4m
5 answers
asked by
Teri
2,460 views
What is the centripetal acceleration of a satellite orbiting Saturn at the location exactly on Saturn radius above the surface
4 answers
asked by
Farah
1,521 views
A piece of metal weighs 50.0 N in air, 36.0 N in water, an 41.0 N in an unknown liquid. Find the density of the unknown liquid.
7 answers
asked by
Phillip
11,867 views
Two boys A and B are at two diametrically opposite points on a circle. At one
instant the two start running on the circle; A
4 answers
asked by
Collins
2,358 views
9. A block attached to a spring of negligible mass undergoes simple harmonic motion on a frictionless horizontal surface. The
4 answers
asked by
gomez
2,041 views
What is the tension in the rope of this figure description?
60 kg person is hanging in the air on a rope attached to a pulley,
6 answers
asked by
Sarah
20,255 views
1.For the following simple see-saw calculate: 1. the load that could be lifed, 2. the maechanical advantage (assume the lever is
18 answers
asked by
Eleni
4,183 views
Calculate The Value Of g At 1000m Above The Surface Of The Earth.The radius Of The Earth Is 6378.1km.
15 answers
asked by
Yonas
4,503 views
A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The spring has a force constant of
5 answers
asked by
Abdul
6,091 views
a 1.4 kg block slides across a rough surface such that it slows down with an acceleration of 1.25 m/s2. What is the coefficient
5 answers
asked by
ellimac
5,351 views
A 75 g bungee cord has an equilibrium length of 1.20 m. The cord is stretched to a length of
1.80 m, then vibrated at 20 Hz. This
4 answers
asked by
Lucas
7,905 views
If the pendulum’s length is 2.00 m and ag =9.80 m/s , how many complete oscillations does the pendulum make in 5.00 min?
the
4 answers
asked by
Anonymous
5,435 views
1. The weight in the following diagram has a mass of 0.750 kg and the cart has a mass of 0.52 kg. There is a friction force of
5 answers
asked by
liz
5,423 views
a roller whose diameter is 20 in weight 72 lbs. what horizontal force is necessary to pull the roller over a brick 2 in high
5 answers
asked by
peter
4,031 views
A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X
5 answers
asked by
Nate
4,113 views
A 1000 kg car is rolling down the street at 2.5 m/s. How fast would a 2500 kg car have to collide into it in order to bring it
5 answers
asked by
eileen
4,643 views
figure 3.1 shows a rectangular concrete slab of weight 18000N. It rests on a brick wall and is the roof of a bus shelter. The
6 answers
asked by
Atta
4,069 views
A 3-kg toy car with a speed of 6 m/s collides head-on with a 2-kg car traveling in the opposite direction with a speed of 4 m/s.
4 answers
asked by
Samy
2,779 views
A diver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. He then pulls is arms and legs
5 answers
asked by
jason
6,463 views
A locomotive is pulling an empty freight car with a constant acceleration on a horizontal surface. The mass of the locomotive is
4 answers
asked by
bub
2,706 views
A uniform AB weighing 40g can be balanced horizontally on a knife edge at 2 cm from the end A when mass of 60 is hung from this
5 answers
asked by
Janeth
946 views
An object is thrown upward at v0 from the surface of a small spherical planetoid of mass M and radius R When the object is a
5 answers
asked by
colton
1,633 views
A 25g ball slides down a smooth inclined plane. 0.850m high, that makes an angle of 35 degrees with the horizontal. The ball
5 answers
asked by
Lory
3,376 views
If a bullet is fired with the speed of 6.0x10² m/s horizontally from a height of 48 m, how long will it take to hit the ground?
7 answers
asked by
Confuzzled
3,219 views
The ski slopes at Bluebird Mountain make use of tow ropes to transport snowboarders and skiers to the summit of the hill. One of
6 answers
asked by
Honey
7,233 views
A car start from rest an is then accelerated uniformly to a velocity of 100.8km/h.A brake is applied in 4sec.find
1.its
4 answers
asked by
Lily
390 views
The spiral spring of a spring balance is 25.0cm long when 5N hangs on it as and 30.0cm long when the weight is 10N
What is the
5 answers
asked by
Lazarus Joseph
4,317 views
You must have seen actors in Hindi films jumping over huge gaps on horse backs and motor cycles. In this problem consider a
4 answers
asked by
rohit
1,304 views
A metre rule is pivoted at it's centre.A glass block is hanged from one end and the rule is balanced horizontally by hanging
4 answers
asked by
Prisca
313 views
Find the effort of a machine whose mechanical advantage is 3 where load is 30N
5 answers
asked by
Anonymous
1,522 views
a 2 kg block slides down a frictionless incline from point A to point B. A force(magnitude P=3N) acts on the block between A and
4 answers
asked by
Robert
3,909 views
Calculation the force needed to lift a load of 1000N
4 answers
asked by
Khwezy
1,709 views
a cannon is 80 feet long. the muzzle velocity = 960 ft / sec. if fired strait up, what is the maximum height
4 answers
asked by
josh
769 views
Two people start running from rest. The first person has a mass of 59 kg and is wearing
dress shoes with a coefficient of static
4 answers
asked by
Anonymous
1,576 views
A soccer ball is kicked from the ground and lands 2.2 seconds later. If the ball was kicked at an angle of 55 degrees above
4 answers
asked by
Lance Gladbach
6,006 views
Morana is trolling for salmon in Lak Ontario. She sets the fishing rod so its tip is 1 m above the water and the line enters the
4 answers
asked by
Kim
1,605 views
a model rocket is projected straight upward from the ground level. It is fired with an initial velocity of 192 ft/s. How high is
4 answers
asked by
Rick
1,970 views
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