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Mechanics
Page 10
Questions (40,013)
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
18 views
A box slides downwards at a constant velocity on an inclined surface that has a coefficient of friction uK = .58 The angle of
5 answers
asked by
Sam
5,487 views
i need help with this one
thanks A particle starts from rest and is acted on by a net force that does work at a rate that is
7 answers
asked by
Damon
5,873 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
7,835 views
During a soccer game a ball (of mass 0.425 kg), which is initially at rest, is kicked by one of the players. The ball moves off
5 answers
asked by
Aries
6,739 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
7,693 views
This is part of a lab with a mass attached to a spring, and the mass attached is of unknown weight.
Which of the following can
4 answers
asked by
Tyger2020
1,333 views
The maker of an automobile advertises that it takes 13 seconds to accelerate from 25 kilometers per hour to 90 kilometers per
6 answers
asked by
Kelly
5,532 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
9,518 views
A 16kg sled starts up a 28 degree incline with a speed of 2.4 m/s . The coefficient of kinetic friction is = 0.27.
part a)How far
6 answers
asked by
leeann
7,948 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
4,205 views
Two metal disks, one with radius R1 = 2.40 cm and mass M1 = 0.900 kg and the other with radius R2 = 4.95 cm and mass M2 = 1.50
5 answers
asked by
121
11,630 views
Typically, a tennis ball hit during a serve travels away at about 51 m/s. If the ball is at rest mid-air when struck, and it has
6 answers
asked by
Jason
5,106 views
A bouncy ball bounces to 2/3 of its height when dropped on a hard surface. Suppose the ball is dropped from 20 m.
What is the
5 answers
asked by
Sam
3,993 views
You are unable to lift an object. which property makes the object difficult to lift
A mass b density c volume d weight
22 answers
asked by
Alexis
9,933 views
You are in an egg drop contest which you win by breaking your egg the hardest. You drop your egg off of a 3 story building
5 answers
asked by
anonymous
1,874 views
You drive down the road at 39 m/s (88 mi/h) in a car whose tires have a radius of 34 cm.
What is the period of rotation of the
6 answers
asked by
anonymous
6,048 views
A clerk pushes a filing cabinet of mass 22.0 kg accross the floor by exerting a horizontal force of magnitude 98 N. The
4 answers
asked by
Raj
2,259 views
You are in an egg drop contest which you win by breaking your egg the hardest. You drop your egg off of a 3 story building (12m
4 answers
asked by
satvik
182 views
Projectile motion problem. The maximum range for a projectile is achieved when the projectile is fired at 45 degrees. This is
3 answers
asked by
Alex
721 views
A tennis ball traveling at 25 m/s has a mass of 58.5 g and bounces off a wall with a speed of 22.5 m/s. The impact took 3.33 ms.
4 answers
asked by
Anonymous
2,024 views
A uniform disc of moment of inertia 75 kg * m ^ 2 and radius of gyration 3 rates with an angula velocity of 2 rad s', Determine
5 answers
asked by
Jennifer uchechukwu
851 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
4,050 views
Two forces 8N and 10N acts at 40 degrees to each other find the resultant force using the resolution of vector
10 answers
asked by
Dora
214 views
a uniform bridge span weighs 50x10^3 and is 40m long. A car weighing 15X10^3 is parked with its center of gravity located 12m
5 answers
asked by
natali
6,253 views
The path of water sprayed from a fountain is modeled by h=−4.9t2+58.8t,
where h is the height of the water in meters after t
3 answers
asked by
Ahmad
125 views
1. Find the magnitude of the torque produced by a 3.0 N force applied to a door at a perpendicular distance of 0.25 m from the
5 answers
asked by
Anonymous
9,464 views
A 55 kg ice skater is at rest on a flat skating rink. A 198 N horizontal forceis needed to set the skater in motion.However,
7 answers
asked by
Melissa
10,465 views
A person using a lever applies 98 Newtons to lift a 20-kilogram box. They apply the force over a distance of 4 meters to lift
1 answer
asked by
kriox
223 views
As denizens of the surface of a spinning planet, we are always in uniform circular motion. Imagine you are in Nairobi (on the
5 answers
asked by
anonymous
1,847 views
suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous
9 answers
asked by
jerson
7,344 views
An arrow is horizontally projected from the top of a tower with an initial velocity of 15m/s.if it reaches the ground 7seconds
7 answers
asked by
Sylvester
2,228 views
A long jumper leaves the ground with an initial velocity of 12 m/s at an angleof 28°
above the horizontal. Determine the peak
3 answers
asked by
christian
445 views
A student drops a basketball into a pool from a height of 5 meters while her friend records the approximate splash height. They
39 answers
asked by
i need to know
21,863 views
During a crash, a dummy with a mass of 60.0 kg hits an airbag that exerts a constant force on the dummy. The acceleration of the
7 answers
asked by
smxnsmn
7,378 views
A truck with 36-in.-diameter wheels is traveling at 55 mi/h.
Find the angular speed of the wheels in rad/min, *hint convert miles
4 answers
asked by
Jen
4,032 views
4. A horse on a merry go round is 7 m from the center and travels at 10km/hr. What is its angular speed?
5 answers
asked by
anonymous
2,913 views
A boy of Mass 20kg stands on a building floor 12m above the ground level. Calculate his potential energy.
7 answers
asked by
Lawal
882 views
A 450-g block is attached to a spring of spring constant 45 N/m and is in simple harmonic motion on a frictionless surface with
5 answers
asked by
Lucy
1,821 views
A uniform have metre rule,pivoted at 20cm mark balances horizontally when a mass of 50g is suspended from 4cm mark calculate the
10 answers
asked by
Francis
5,821 views
A ball is dropped from $405$ meters and rebounds two-thirds the distance it falls each time it bounces. How many meters will the
5 answers
asked by
Brendan Zankowski
2,114 views
A round bar 40mm diameter is subjected to an axial pull of 80kN and
reduction in diameter was found to be 0.00775mm. Find
5 answers
asked by
aswath
3,064 views
A ball bounces two-thirds of the distance it falls. If it is dropped from a height of 10 meters, how far does it move before
5 answers
asked by
ALI
2,494 views
in 1 to 2 sentences explain why two objects with the same mass when dropped from the same height may not reach the ground at the
3 answers
asked by
:)
479 views
David can row at 5 m/s in still water. He starts rowing from a point on the south bank of a river that is flowing due east at 3
4 answers
asked by
LE
1,133 views
Col. John Stapp led the U.S. Air Force Aero Medical Laboratory's research into the effects of higher accelerations. On Stapp's
4 answers
asked by
Sydney
3,103 views
A car is travelling along a straight road. The driver suddenly observes that the road ahead is flooded and applies the brakes.
De
4 answers
asked by
Mathew
3,073 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
2,172 views
A uniform rod AB is 2m Long. The rod, which exerts a downward force of 60N at its center, is placed on a knife edge support
4 answers
asked by
Isaac
934 views
A bicycle wheel has a radius of 0.330 m and a rim whose mass is 1.20 kg. The wheel has 50 spokes, each with a mass of 0.010 kg.
a
4 answers
asked by
Janelle
2,427 views
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