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Mechanics
Page 5
Questions (40,013)
An automobile of mass 2000kg started from rest position and increased it's speed uniformly to 9m/s in 30s,it maintained this
6 answers
asked by
Tina
1,311 views
A pendulum clock that works perfectly on Earth is taken to the Moon. (a)Does it run fast or slow there? (b) if the clock is
5 answers
asked by
steph
5,341 views
Fig.19 shows a crane lifting a car of mass 850 kg at constant velocity through a height of 12m in a time of 40s. The crane has a
5 answers
asked by
cake
3,498 views
Mathematical relationship between the change in momentum of an object and the net force applied to the object
4 answers
asked by
Reabetswe Bernice
239 views
A uniform cylindrical spool of mass M and radius R unwinds an essentially
massless rope under the weight of a mass m. If R = 12
4 answers
asked by
Nora
2,531 views
The moment of inertia of a solid uniform sphere of mass M and radius R is given by the equation I=(2/5)MR2 . Such a sphere is
4 answers
asked by
Anonymous
4,179 views
State the principle of moments. You are supplied with a meter rule ,a 100g weight, a knife edge, thread an object mass between
4 answers
asked by
Anonymous
817 views
a 50 kg block is placed on an inclined plane with an angle of 30. then find the components of the weight (1)perpendicular
4 answers
asked by
shahanshah
2,290 views
a force of 486 lb is necessary to keep a weight of exactly 800 lb from sliding down an inclined plane. What is the angle of
3 answers
asked by
Anonymous
289 views
A spring with 50 N/m hangs vertically next to a ruler. The end of the spring is next to the 21-cm mark on the ruler.If a 2.5-kg
4 answers
asked by
Anonymous
2,885 views
A uniform rod of mass of 120g and a length of 130cm is suspended by a wire from a point 80cm from the rods left end . What mass
4 answers
asked by
Anonymous
275 views
A ball of mass 50 g tied to the end of a 50 cm inextensible string is whirled around in a vertical circle. Find the tension in
3 answers
asked by
hart
1,079 views
a 10-m uniform beam of weight 100N is supported by two ropes at the ends. If a 400N erson sits at 2.0 m from the left end of the
4 answers
asked by
lulu
4,795 views
a stone is thrown horizontally from the top of a vertical wall with a velocity of 15m/s, hits the horizontal ground at a point
3 answers
asked by
Josh aile
1,030 views
A stone of mass 5g is projected with a rubber catapult. If the catapult is stretched through a distance of 7cm by an average
1 answer
asked anonymously
26 views
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a
5 answers
asked by
Jessica
14,793 views
I have a big online test and would really appreciate if you could please check my answers before I submit them (I only have 1
5 answers
asked by
Tyger2020
1,930 views
Four very thin rods, each 8.3 m long, are joined to form a square. The center of mass of the square is located at the coordinate
4 answers
asked by
Hannah
2,506 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
Two rocks of very different sizes are dropped from the same height. Which value will be different for the two rocks?(1 point)
the
10 answers
asked by
Help plz
6,247 views
If a student measures the length of the pendulum to be 0.510m in a simple pendulum experiment and determines that the period of
3 answers
asked by
Precious
408 views
A particle in simple harmonic motion has a period of 0.4s. If the maximum speed attained during the motion is 0.3s, what is the
4 answers
asked by
Olajumoke
944 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 uniform harf metre rule is freely pivoted at the 15cm mark and it balances horizontally when a body of mass 40g is hung from
5 answers
asked by
Inyass
806 views
The height, in metres, of an object that has fallen from a height of 180 m is given by the position function s(t)=-5t^2
4 answers
asked by
Morris
3,811 views
An airplane has a speed of 400 km/h with no wind. The airplane flies 2140 km with the wind. The airplane can only fly 1860 km
4 answers
asked by
Muneer
2,154 views
make m the subject of the formula mg-t= ma
5 answers
asked by
esther edomoh
537 views
Initially, a spring-mass system completes 20.0 vibrations in 5.0 seconds, with a 2.0 cm amplitude.
The same mass is pulled 5.0 cm
4 answers
asked by
Jim
1,013 views
a boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10cm high in 10 seconds. What is his power? show your
11 answers
asked by
marv
7,611 views
Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the
5 answers
asked by
emm
8,084 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
6,090 views
A 0.075 kg ball in a kinetic sculpture moves at a constant speed along a motorized conveyor belt. The ball rises 1.32 m above
10 answers
asked by
Brian
12,168 views
A particular Ferris wheel (a rigid wheel rotating in a vertical plane about a horizontal axis) at a local carnival has a radius
4 answers
asked by
waqas
4,317 views
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the
6 answers
asked by
Ame
8,775 views
The shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behavior of the
5 answers
asked by
Catherine
3,108 views
to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from
5 answers
asked by
Sam
7,914 views
A load of 100 lb is hung from the middle of a rope, which is stretched between two rigid walls 30 ft apart. Due to the load, the
4 answers
asked by
pinkmiming
7,018 views
An elevator, with a total mass of 454 kg, accelerates downward at 3.51 m/s2. During this time, the tension in the elevator cable
4 answers
asked by
bano
2,786 views
A car mass 600kg moving a speed 20m/s.it collides with a stationary car mass 900kg.if the first car bounce back 4m/s.what speed
5 answers
asked by
Yonas
1,494 views
a mover uses a ramp to pull a 1000 newton cart up to the floor of his truck 0.8 meters high if it takes a force or 200 newtons
7 answers
asked by
hunter
4,497 views
a machine gun fires 10 bullets persecond into a target. each bullet weights 20 gm and had a speed of 1500 m per second .find the
6 answers
asked by
sunny
2,327 views
a stone is thrown upward with an initial velocity of 20m/s.air resistance is ignored.how far does it take to reach the top?
4 answers
asked by
joseph
1,232 views
a uniform half metre rule is freely pivoted at the 20 cm mark and its balance horizontaly when a body of mass 30g is hung 5cm
6 answers
asked by
Anonymous
2,471 views
A 52kg ice hockey player moving at 11m/s slows down and stops over a displacement os 8.0m.
Calculate the net force of the skater.
6 answers
asked by
Mike
2,961 views
An airplane is heading due east with an airspeed of 220km/h when it encounters a wind from the south at 76km/h. What is the
5 answers
asked by
Sara
1,980 views
A spring is hung from the ceiling. When a coffee mug is attached to its end, it stretches 3.0 cm before reaching its new
4 answers
asked by
Mike
4,678 views
A 0.50 kg cue ball makes a glancing blow to a stationary 0.50 kg billiard ball. After the collision the cue ball deflects with a
5 answers
asked by
grey
2,962 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 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
A 5.00-kg box is suspended from the ceiling by a cord that is 50.0 cm long. A 10.0-g bullet was fired horizontally with speed at
3 answers
asked by
Candu
657 views
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