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Mechanics
Page 7
Questions (40,202)
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
1,257 views
A bowling ball rolls without slipping up a ramp that slopes upward at an angle (beta) to the horizontal. Treat the ball as a
4 answers
asked by
Joe
7,696 views
When a force of 50N is applied to the free end of an elastic cord, an extension of 4cm is produced. Calculate the work done on
4 answers
asked by
Joshua
823 views
A 200m dash along a straight track was timed at 21.1 s by a timer located at the finish line who used the flash from the
5 answers
asked by
Melissa
3,285 views
A plane head north with an airspeed of 420 km/h. However, relative to the ground, it travels in a direction 7.0 west of north.
5 answers
asked by
JHM
3,334 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
1,329 views
a car has wheel of 30cm radius. it starts from rest and accelerates uniformly to a speed of 15 m/s in a time of 8s. find the
4 answers
asked by
Anonymous
3,563 views
A body falls freely from rest for a 6sec find the distance traveled in the last 6sec.
4 answers
asked by
Dave Ang
1,588 views
in the hydraulic machine shown, you observe that when the small piston is pulled down 10cm, yhe large piston is raised 1 cm. if
4 answers
asked by
john
5,959 views
A ball of mass 200g, travelling with a velocity of 100m/s, collides with another ball of mass 800g, moving at 50m/s in thesame
7 answers
asked by
Yakubu Samuel
1,791 views
A spiral spring extends from length 10.01m to 10.00cm when a force of 20N is applied on it. Calculate the constant force
14 answers
asked by
lola
4,643 views
In an elastic collision, a 1.0 kg ball moving at 1.0 m/s collides with a 2.0 kg ball moving at −2.0 m/s. The 2.0 kg ball
4 answers
asked by
Anonymous
788 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
7,256 views
If a body moving with simple harmonic motion has an angular velocity of 50 radiansper second, and an amplitude of 10 cm,
5 answers
asked by
Pablo kesh
1,252 views
A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in
4 answers
asked by
emmanuel
1,575 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
4,332 views
spring with a force constant of 111 Nm is attached to the ceiling. When an unknown mass is attached it pulls the spring down
4 answers
asked by
Alicia
835 views
A 100g golf ball moving with a velocity of 20 m/s, collides with an 8 kg steel ball at rest,if the collision is elastic,compute
4 answers
asked by
neha
2,744 views
Teh mechanical advantage (assume the lever is 100% efficient
4 answers
asked by
Temu
418 views
A uniform plank of length 3 m is supported by two wooden trestles L and M as shown in the diagram above. L exerts a force of 80n
4 answers
asked by
juanita
1,091 views
A small bug is placed between two masses (m1>m2) on a frictionless table. A horizontal force F is applied to either m1 or to m2,
4 answers
asked by
Anonymous
4,739 views
Why does the coasting rotating system slow down as water drips into the beaker??
5 answers
asked by
Rimsha Ahmed
1,450 views
Calculation the force needed to lift a load of 1000N
4 answers
asked by
Khwezy
1,716 views
A box weighing 890N is pulled along a horizontal surface by means of a string which is at 30o above the horizontal. If the
4 answers
asked by
Dan Ira King
616 views
A car (m = 1870 kg) is parked on a road that rises 12.1 ° above the horizontal. What are the magnitudes of (a) the normal force
4 answers
asked by
kat
3,392 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
1,209 views
a bullet of mass of 12 grams is fired into a large block of mass 1.5 kg suspended from light vertical wires. the bullet imbeds
4 answers
asked by
erin
1,273 views
A sharpshooter shoots the bullet horizontally over level ground with a velocity of 300m/s. At the instant that the bullet leaves
5 answers
asked by
Farah
1,738 views
A mass of 8kg is pulled by a force of 20N along a smooth floor.find
(1) Acceleration (2)Velocity after 4sec (3) Distance move in
4 answers
asked by
Bamidele Olamide
692 views
A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally,
4 answers
asked by
Angela
6,805 views
A bullet of mass 15g is short from a gun 15kg with a muzzle velocity of 200m/s if the bullet is 20cm calculate;(a)the
3 answers
asked by
mike
327 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
1,095 views
The A string on a string bass is turned to vibrate at a fundamental frequency of 55.0Hz. If the tension in the string were
4 answers
asked by
Mirenda
1,275 views
A 1.47-newton baseball is dropped from a height of 10.0 meters and falls through the air to the ground. The kinetic energy of
3 answers
asked by
Katie
4,315 views
Three objects A,B,C are placed 50.0 cm apart along a straight line. A and B have a mass of 10.0 kg, while c has a mass of 15.0
4 answers
asked by
anonymous
885 views
A string of natural length L extends to a new length L' under tensile force F. If Hooke’s law applies, the work done in
1 answer
asked by
LørdySmårt1SS
46 views
A solid disk is released from rest and rolls without slipping down an inclined plane that makes an angle of 25.0° with the
2 answers
asked by
Sam
956 views
a uniform metal rod of length 80cm and mass 3.2kg is supported horizontally by two vertical spring balances at C and D. Balance
4 answers
asked by
Kenneth Odongo
642 views
A 31.4-kg diver free falls from the diving board and hits the water with a speed of 10.0 m/s. Based on this information, the
1 answer
asked by
oihln
478 views
A single movable Lully is being used to move a 140 N load. The pulley is a little dirty, so it adds another 5 N frictional
1 answer
asked anonymously
24 views
A 12-g bullet moving horizontally strikes and remains in a 3.0-kg block initially at rest on the edge of a table. The block,
4 answers
asked by
Anonymous
7,845 views
A 10-g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the
4 answers
asked by
Anonymous
7,709 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
3,947 views
calculate the work done when a person pushes a car from its stationary position to a distance of 50m applying a force of 200n
10 answers
asked by
augustine samson
2,387 views
A 10-kg box is pulled along a horizontal surface by a
force of 40N applied at a 30° angle above horizontal. The coefficient of
5 answers
asked by
denise
9,536 views
An airplane has an airspeed of 450 km/hr bearing N45E. The wind velocity is 30 km/hr in the direction N30W. What is the ground
4 answers
asked by
VEJ
4,211 views
Forces 10N and 50N are to be balance at the end of 1m long lever.Where should be the position of fulcrum?
5 answers
asked by
Manash
901 views
At t = 0, a wheel rotating about a fixed axis at a constant angular acceleration of –0.40 rad/s^2 has an angular velocity of
5 answers
asked by
Jared
7,968 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
1,266 views
You are a 70kg astronaut floating at rest in zero gravity holding your laptop. Your hard drive turns on (increasing from 0 to
5 answers
asked by
anonymous
1,986 views
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