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Mechanics
Page 2
Questions (39,952)
A person drive an automobile with a mass of 450 kilograms at a velocity of 26 meters per second. The driver accelerates to a
7 answers
asked by
maria
14,760 views
A stone is thrown up with a velocity of 20 m/s. While coming down, it strikes a glass pan, held at half the height through which
5 answers
asked by
Adnan
1,666 views
Workers have loaded a delivery truck in such a way that its center of gravity is only slightly forward of the rear axle. .63m in
5 answers
asked by
shai
9,950 views
Calculate the power output of a 1.3-g fly as it walks straight up a windowpane at 2.5 cm/s
5 answers
asked by
Lizbeth
7,080 views
The position of an object connected to a spring varies with time according to the expression x = (7.1 cm) sin (2.1π t). Find
(a)
4 answers
asked by
Tom
7,098 views
I was wondering if my answers are correct.
1. A 50kg person is taking a ride on an elevator travelling up at a steady speed of
7 answers
asked by
Liz
5,049 views
¬Calculate the period of oscillation of a simple pendulum of length 1.8 m, with a bob of mass 2.2 kg. What assumption is made
4 answers
asked by
Anonymous
2,085 views
Forces with magnitudes of 250 pounds and 130pounds act on an object at angles 45degrees and -60degrees respectively with the
4 answers
asked by
Anonymous
4,556 views
A spring of natural length 30cm is stretched to 35cm by a load of 15N. Calculate the extension produced,the elastic constant of
5 answers
asked by
Anonymous
1,269 views
I need help with this question with explanation. Thanks
A particle of mass m starts from rest at position x = 0 and time t = 0.
6 answers
asked by
Sara
7,570 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
7,904 views
You are told 3 things...1. That there are two objects with equal masses. 2. Both objects are in motion. 3. One object has a
17 answers
asked by
Clueless
1,576 views
A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find
6 answers
asked by
ale
7,298 views
A wheel with rotational inertia I is mounted on a fixed, fricitonless axle. The angular speed w of the wheel is inccreased from
11 answers
asked by
Tammy
18,024 views
State the physical quantities one has to measure in order to determine the young's modulus of a wire?
7 answers
asked by
Ashwariyya
3,124 views
An elastic string of length 20cm extends to 24cm when it supports a weight of 50N. Calculate the energy stored in the string.
5 answers
asked by
Shola
1,595 views
A girl pushes a load of mass 20kg to a distance of 10 metres in 5 seconds calculate (1) the work done (2) the energy used (3)
4 answers
asked by
Olorunnimbe
722 views
A stone was dropped off a cliff and hit the ground with a speed of 120 ft/s. Using the fact that acceleration due to gravity is
5 answers
asked by
Cole
10,961 views
a)How much work is required to lift a 35-kg object from the ground 3.0 m into the air?
b) How much gravitational potential energy
19 answers
asked by
Annie
5,031 views
a boy tosses a coin upward with a velocity of 14.7 m/s.
a. find the maximum height reached by the coin. b. time of flight c.
7 answers
asked by
jenalyn calimag
19,288 views
A spring is stretched 40mm by force 15N, what is the work done by the force
9 answers
asked by
Issa
5,366 views
A spring sketch by 6cm when supporting a load of 15N? By how much would it stretch when supporting a load of 5Kg
7 answers
asked by
Purity
3,047 views
A mass is oscillating with amplitude A at the end of a spring.
How far (in terms of A) is this mass from the equilibrium position
5 answers
asked by
Joe
4,959 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
2 answers
asked anonymously
136 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
76 views
A 0.5kg cart connected to light spring for which the force constant is 20 Nm on horizontal frictionless air track. Calculate the
5 answers
asked by
Anonymous
7,576 views
An airplane's velocity with respect to the air is 580 miles per hour, and it is heading N 60 degrees W. The wind, at the
6 answers
asked by
Hannah
6,400 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
13,993 views
A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to
7 answers
asked by
chris
6,406 views
If a force of 100n stretches a spring by 0.1cm. Find
(A) the elastic constant (B) the work done in stretching the spring 0.3cm if
5 answers
asked by
Gabriel
1,645 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
1 answer
asked anonymously
126 views
A 0.230-kg wooden rod is 1.55 m long and pivots at one end. It is held horizontally and then released.
1) What is the angular
4 answers
asked by
anonymous
3,921 views
The handle of a car jack is moved 75 cm
and the car is lifted 2.5 cm. What is the ideal mechanical advantage of this car jack?
5 answers
asked by
Brittany
1,853 views
A block slides from rest with negligible friction down a track, descending 5.0m to point P at the bottom. It then slides on the
5 answers
asked by
Anonymous
16,730 views
The velocity function (in meters per second) is given for a particle moving along a line.
v(t) = 3t − 7, 0 ≤ t ≤ 3 (a) Find
4 answers
asked by
Anonymous
13,103 views
a force F is applied in horizontal to a 10kg block. the block moves at a constant speed 2m/s across a horizontal surface. the
6 answers
asked by
kristen
4,624 views
A small block with a mass of m = 0.120 kg is attached to a cord passing through a hole in a frictionless, horizontal surface.
5 answers
asked by
Sonya
3,846 views
A 0.20-kg mass is hung from a vertical spring of force constant 55 N/m. When the
spring is released from its unstretched
5 answers
asked by
Syed
4,424 views
The length of simple pendulum that makes 12 oscillation/minute is
5 answers
asked by
Rajkumar
2,225 views
An object with mass 3.0 kg is attached to a spring with spring stiffness constant k = 300 N/m and is executing simple harmonic
7 answers
asked by
Nicole
16,832 views
The velocity of a particle on the x-axis is given by the differential equation dx/
dt= t^2/ 2 and the particle is at x = 4 when t
6 answers
asked by
John
1,826 views
A car slows down from 108 km/h to 90 km/h over the course of 4 s and 0.1 km. The force of the brakes was 1000 N. What is the
5 answers
asked by
Markous
2,704 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
20,471 views
A cylindrical oil storage tank 12 feet in diameter and 17feet long is lying on its side. Suppose the tank is half full of oil
6 answers
asked by
Mishaka
5,163 views
Two masses are hung are connected by a light cord and hung from a frictionless pulley of negligible mad are shown. Mass
6 answers
asked by
Kam
8,028 views
Abox of mass 60kg starts from the rest at height h and slides down a rough slope of length 10m, which makes an angle of 25
4 answers
asked by
Sphelele
2,875 views
A hydraulic lift office chair has its seat attached to a piston with an area of
11.2 cm2 . The chair is raised by exerting force
7 answers
asked by
Alexis
7,505 views
An oil tank is 3m long, 3 m wide and 2 m high, when it is full of coconut oil specific gravity of 0.90, find the downward force
5 answers
asked by
mmmm
2,239 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
4,173 views
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier
4 answers
asked by
Brookeneed
6,941 views
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