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Mechanics
Page 5
Questions (40,202)
A glider on an air track is connected by springs to either end of the track. Both springs have the same spring constant,k , and
7 answers
asked by
annie
5,853 views
A track consists of a frictionless incline plane, which is a height of 0.5m, and a rough horizontal section with a coefficient
4 answers
asked by
Gwladys
4,093 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
814 views
Calculate the resultant of five coplanar forces of values 10N,12N,16N,20N,15N acting on an object at 0
9 answers
asked by
Jane
3,526 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
3,828 views
The man slides the 100-kg crate across force of 200 N. If the crate was initially at rest, how far will the crate move before
its
4 answers
asked by
Ivan
1,709 views
How could you increase the mechanical advantage of the ramp below?
a decrease the length of the ramp b increase the length of the
1 answer
asked by
no name
100 views
A net force is applied to a moving object, which statement best describes the effect of the force
4 answers
asked by
Star
839 views
make m the subject of the formula mg-t= ma
5 answers
asked by
esther edomoh
556 views
A fly wheel rotates at 300 rev/min.if the radius is 6cm through what total distance does a point on the rim travel in 30 sec.
5 answers
asked by
shoaib
1,765 views
A metre ruler is balanced at the 35cm mark by a 1N weight placed at the 15cm mark. What is the mass of the ruler?
4 answers
asked by
lion
776 views
Solve a man of mass of 90kg is moving at a constant velocity. He has kinetic energy of 2205J. Calculate his velocity.
12 answers
asked by
Favour
2,210 views
A bowler throws a ball down the lane toward the pins. The ball reaches the pins and slowly moves through them, knocking down the
4 answers
asked by
Ieasha30
1,087 views
A projectile is fired with an initial speed of 120m.s' at an angle of 60' above the horizontal from the top of a 50m high cliff.
4 answers
asked by
Mykmoloko
1,966 views
a 0.5kgball falls into a heap of sand from a height of 10m above the sand. it comes to rest 2.5m beneath the surface of sand.
4 answers
asked by
Raveen
1,703 views
1. Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of
4 answers
asked by
Idk name here
1,573 views
If a torque on the spindle pulley of a drilling machine is 35 N.m and 30% of this torque is used to overcome friction, Calculate
4 answers
asked by
Mahlatse
559 views
A box weighing 20 N, resting on a ramp, is kept at equilibrium by a 4N force at an angle of 20 degrees to the ramp, together
4 answers
asked by
Anonymous
1,024 views
a concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35 degrees. the coefficient of kinetic friction
10 answers
asked by
ezana
8,981 views
An ideal massless spring is fixed to the wall at one end. A block of mass M attached to the other end of the spring oscillates
4 answers
asked by
Tammy
14,057 views
A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 38.0 degrees. (a) Find the
4 answers
asked by
Karla
12,750 views
Wayne pulls a 305 N sled along a snowy path using a rope that makes a 45.0° angle with the ground. Wayne pulls with a force of
5 answers
asked by
Merlin
6,059 views
A 61-kg skier, coasting down a hill that is an angle of 23 to the horizontal, experiences a force of kinetic friction of
5 answers
asked by
Tristan
4,157 views
A toy rocket has a mass of 350g at launch.the force it produces is 15N and it is fired at angle of 65⁰ to the horizontal.what
7 answers
asked by
Tesnim
1,120 views
A force of 300N lifts a mass of 120kg with help of lever whose length is 2.4 m.The distance between fulcrum and mass is
a) 40cm
10 answers
asked by
Ghulam muhammad
1,616 views
A body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation x=5
5 answers
asked by
veena
5,241 views
An elastic string of length 20cm extends to 24cm. When it supports a weight of 50N, the energy stored in the string is
5 answers
asked by
ayo
2,637 views
A piece of stone has volume 400cm³ and density 7800kg/m³. It is immersed totally in water of density 1000kg/m³. Calculate the
7 answers
asked by
Aditya Singh
1,815 views
A ball is thrown 12 meters in the air (so that the initial up-and-down distance is 24 meters). The ball rebounds 95% of the
5 answers
asked by
Anonymous
4,494 views
The maximum load a beam will support varies directly with the square of the diagonal of the beam's cross section.A beam with
5 answers
asked by
Keonn'a
4,254 views
A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration
4 answers
asked by
James
2,521 views
a 100 gram bullet is fired from a 10 kg gun with a speed of 1000m/sec. what is speed of recoil
6 answers
asked by
Devin Darkie
3,133 views
The 200kg hammer of a pile driver is lifted 10 m. Find the potential energy of the system when the hammer is at this height
4 answers
asked by
James
2,636 views
Hi, the following is a problem that concerns angular momentum:
Modern hard drives spin very fast! The part that holds the data is
5 answers
asked by
Grace
1,916 views
A Frisbee is thrown horizontally with a speed of 12 m/s. If the Frisbee moves a horizontal distance of 15 m, how long will it
5 answers
asked by
Jhoy
4,207 views
A uniform plank measures 2m long from it's end point A to point B. If the weight of the plank is 54N and it rests on a knife
4 answers
asked by
Blessed
702 views
A body weight 0.3N in air,0.25N when fully immersed in water and 0.27N when fully immersed in liquid. calculate a. It's water
5 answers
asked by
Elias
498 views
A 60 kg student does 60 push ups in 40s . With each push up , the student must lift 70% of the body mass a height of 40cm off
5 answers
asked by
Melissa
2,638 views
A machine has a velocity ratio of 6 and the efficiency of 75%.what effort would be needed to lift the load with the aid of the
6 answers
asked by
Mercy
2,341 views
A boy whose mass is 40kg runs up a flight of 30 steps each 150mm high in 6seconds. Find the average power developed (take g as
12 answers
asked by
Igbekele
4,419 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
396 views
A boat is being towed through a canal by a horizontal cable which makes an angle of 10° with the shore. If the force tending to
4 answers
asked by
jamir
4,142 views
from what height must a heavy elastic ball be dropped on a floor ,so thatafter reboundingthrice it will reach a height of 16
4 answers
asked by
Anonymous
2,560 views
A pulley system used to lift a load of 9600N using an effort of 2400N through a vertical distance of 20m.1)calculate the
4 answers
asked by
Anonymous
1,102 views
A force of 40N is applied at the end of a wire 4m long and produces an extension of 0.24mm. If the diameter of the wire is
5 answers
asked by
andre
3,168 views
A uniform metre rule AB us balanced on a knife edge which is 55cm from B. If a mass of 10g is hung at P, which is 10cm from A,
9 answers
asked by
Richard
5,200 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
1,318 views
a ping pall ball is dropped from 20m on a horizontal roof of a house and always reduce to 1/8of previous fall in each bounce
4 answers
asked by
jeshion
845 views
A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a
4 answers
asked by
Lexi
1,227 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
2,318 views
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