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Mechanics
Page 4
Questions (40,031)
a string can hold up 12 kg without breaking. You tie the string to a 30kg object sitting on ice and use it to pull the object
5 answers
asked by
John
3,270 views
The change in the momentum of an object (Ä p) is given by the force, F, acting on the object multiplied by the time interval
4 answers
asked by
Casablanca
2,830 views
Calculate the force required to move a small pistons that has an area of 2m2,if the force of a large piston is 20n with an as
6 answers
asked by
Anonymous
2,412 views
A car of mass 600 kg is moving at a speed of 20 m/s.it collides with a stationary car of mass 900 kg.if the first car bounces
10 answers
asked by
Mrsi
4,678 views
The blade of a windshield wiper moves through an angle of 90.0° in 0.398 s. The tip of the blade moves on the arc of a circle
7 answers
asked by
vik
9,973 views
when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what
5 answers
asked by
joe
18,160 views
when a 14.0 kg mass hangs from a spring that has a spring constant of 550nm the spring has a length of 82 cm. determine the
5 answers
asked by
FORM 3G
2,191 views
I need help with this question please. A solid cylinder of mass m and radius R has a string wound around it. A person holding
7 answers
asked by
Una
8,005 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
5,216 views
A block with mass m =7.3 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.21 m.
7 answers
asked by
Chad
5,879 views
Water drives a waterwheel (or turbine) of radius 3.0m. The water enters at a speed of v1 = 7.0 m/s and leaves at a speed of v2=
5 answers
asked by
Odd
5,059 views
two cars start on opposite sides of a circular track. One car has a speed of 0.015 rad/s;the other car has a speed of 0.012
5 answers
asked by
israa
1,977 views
A spring stretches by 6cm when supporting a load of 15N ,what load would make the spring extend by 25mm
7 answers
asked by
Mish
1,063 views
a stone is thrown at an angle of 30 degrees above the horizontal from the top edge of a cliff with an initial speed of 12m/s. a
4 answers
asked by
S
3,368 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
4 answers
asked by
Jordge
1,492 views
Assume that all of the mass of a bicycle wheel is concentrated at its rim. Such a wheel of mass 1.2 kg and radius 30 cm starts
5 answers
asked by
kelsey
3,310 views
a worker on the roof of a building that is under construction dropped a 0.125 kg wrench over the edge. another workman on the
4 answers
asked by
lomonoyan
1,679 views
A car traveling 16.0m/s crashes into concrete embankment and stops in 0.08s. Calculate:
the initial speed in mi/hr the average
4 answers
asked by
MARIE
839 views
Two blocks of masses m1=4kg and m2=5kg are connected by a massless string that passes over a massless frictionless pulley.block
4 answers
asked by
tizazu
1,195 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
2,887 views
A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is
4 answers
asked by
Mary
4,912 views
a sitealite is orbiting Earth at an orbital radius of 3.9×103 m. What is its velocity in terms of G and the mass of Earth, mp?
5 answers
asked anonymously
89 views
an elephant of mass 50kg stands with all four feet on the ground. each foot has an area of 0.2m^2calculate the pressure exerted
4 answers
asked by
daniel
701 views
a persons heart and head are 1.3 meter and 1.8 meter above the feet,respectively.determine the potential energy of 0.5 kg of
3 answers
asked by
rodel
414 views
Use the image to answer the question.
An illustration shows three coiled wire springs stretched to varying lengths. The first
7 answers
asked by
:p
70 views
A student kicks a 2 kg soccer ball with a force of 50 N. Calculate the acceleration of the soccer ball. Please show your work.(2
1 answer
asked anonymously
85 views
A magnetic particle weighing 3.6 grams is pulled through a solenoid with an acceleration of
6m/s2. Compute the force in pounds
4 answers
asked by
sam
1,250 views
Question Four
A simple pendulum is used in a physics laboratory experiment to obtain an experimental value for the gravitational
5 answers
asked by
Jay Peels
1,273 views
A satellite is in a circular orbit about the earth (ME = 5.98 x 1024 kg). The period of the satellite is 1.77 x 104 s. What is
5 answers
asked by
Anonymous
15,178 views
What is the spring constant of a spring that stretches 2.00 cm when a mass of 0.600 kg is suspended from it?
Answer i know the
5 answers
asked by
v
8,171 views
A car of mass 760kg travel with a velocity of 14.0ms-1 . If the brakes are applied , the car travels a distance of 55.0m before
5 answers
asked anonymously
191 views
An object , constrained to move along the x-axis is acted upon by a force F(x)=ax + bx^2 where a=5N/m , b=-2m/s
The object is
6 answers
asked by
Anonymous
3,091 views
A spring with a 4 kg mass has natural length 1 m and is maintained stretched to a length of 1.3 m by a force of 24.3 N. If the
5 answers
asked by
COFFEE
2,632 views
find the mass of a cylindrical iron pipe 2.1m long and 12cm in external diameter,of the metal is 1 cm thick and of density
4 answers
asked by
Boye-Akelemor
473 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
1,545 views
a rock is dropped from a high brige.at the end of 3 seconds of free fall the speed of the rock is:[in centimeters per
5 answers
asked by
komal
5,487 views
a 15-g bullet is fired from a rifle. it takes 2.50 * 10^-3s for the bullet to travel the length of the barrel, and it exits the
5 answers
asked by
courtney
7,183 views
A ball mass 1000g is drop from a height Of 5m and rebounded to a height Of 25 m. Find i it kintentic just before impact ii its
9 answers
asked by
Anonymous
3,321 views
A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolutions
will it make, and what time
7 answers
asked by
joel
6,780 views
how large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a horizontal distance of 80 m ? I'm
6 answers
asked by
courtland
7,791 views
A 30-lb child is siting at A(2,3) and a 50-lb child is at B(12,7) where units are feet .Find the point P between A and B which
4 answers
asked by
neil
2,349 views
A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of
5 answers
asked by
Gabe
20,478 views
a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the
5 answers
asked by
Jess
4,227 views
A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction force of 3.2 N
4 answers
asked by
joe
3,987 views
An object projected horizontally from the top of a cliff with a velocity of 7 metre per second and land on the ground level a
5 answers
asked by
Favour
1,715 views
A roller coaster car of mass 400kg starts from rest at point A and passes the point B with a speed of 3m/s.if the distance from
4 answers
asked by
wallacenjovu
1,885 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
2,619 views
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
A spiral spring is compressed by 0.04m.calculate the energy stored in the spring,if the force constant is 100Nm-1
6 answers
asked by
Taiwo
1,067 views
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