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Mechanics
Page 10
Questions (39,953)
A brick of mass 2kg just begins to slide down an inclined plane at an angle of 45 degree with horizontal.what will be the force
2 answers
asked by
Anonymous
959 views
A light string has its ends tied to two walls separated by a distance equal to five-eighths the length of the string. A 53 kg
2 answers
asked by
pop
753 views
Work happens when a push or a pull is exerted on an object and the object moves a distance.
* 1 point True False
1 answer
asked anonymously
95 views
A force of 10N stretches an elastic spring to a total length of 20cm. If an additional force of 8N stretches the spring 4cm
1 answer
asked by
Aslam
32 views
Thank you Advance...;;
Q: A body of mass 10 kg is moving over a smooth surface, whose equation of motion is given by the
6 answers
asked by
abodd
3,577 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
5,479 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
5,866 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
6,729 views
1. Determine the effort required to lift a load of 100 N using:
(a) Using a single fixed pulley (b) A single movable pulley (c)
5 answers
asked by
Mustafa khamis shaaban
340 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
1,327 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
5,523 views
A car travels 28 m [E 35° S] and then turns and travels 45 m [S]. the whole motion takes 6.9s.
what is average velocity? answer:
4 answers
asked by
Matty
2,947 views
For a perfectly plastic central impact ______
Multiple choice question a)The entire kinematic energy of two bodies must be lost
4 answers
asked by
Rajan
2,291 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
7,945 views
a body of mass 3.0kg moves with the velocity of 10m calculate the momentum of the body
4 answers
asked by
gambo mamman
624 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
9,921 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
1,867 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
6,041 views
1.state the mathematical relationship between the net force acting on an object and the object's change in momentum.
2state the
6 answers
asked by
OwamIII
3,088 views
Two people are pulling a boat through the water as in Figure P4.20. Each exerts a force of 600 N directed at a θ = 45.0° angle
4 answers
asked by
nat
4,890 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
174 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
715 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
845 views
A torque of 77.7 Nm causes a wheel to start from rest, completes 5.55 revolutions and attains a final angular velocity of 88.8
6 answers
asked by
Tyger2020
1,353 views
A wooden box with a mass of 10.0kg rests on a ramp that is inclined at angle of 25 degrees to the horizontal. A rope attached to
4 answers
asked by
Lupita
4,542 views
a block of mass 2.50 kg rests on a ramp. if the coefficient of static friction between the block and ramp is 0.350, what maximum
7 answers
asked by
JayCee
4,453 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
6,246 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
120 views
The graph in Figure 10-22 shows the force and displacement of an object being pulled.
Figure 10-22 (a) Calculate the work done to
6 answers
asked by
Manny Aragon
2,503 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
9,457 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
1,843 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
7,338 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
2,222 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
435 views
a hockey stick has a mechanical advantage of 4. if the effort arm(which is the distance between the fulcrum and your pushing
4 answers
asked by
-haya-
1,189 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
7,366 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
4,019 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
2,907 views
If a wheel turning at a constant rate completes 100 revolutions in 10 sec what is its angular speed?
5 answers
asked by
Anonymous
9,338 views
the height that a ball bounces varies directly as the height from which it is dropped. A ball dropped from a height of 20cm
4 answers
asked by
lisa
3,025 views
If an object is dropped from a height of 200 feet, the function h(t) = -16t^2 + 200 gives the height of the object after t
12 answers
asked by
Anonymous
9,265 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
879 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
1,811 views
A brick with a mass of 6kg is dropped vertically from a certain height.it takes 4,5 seconds for the brick to reach the
4 answers
asked by
Peter
1,036 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
5,813 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
2,487 views
Force and Work Unit Test
1 of 121 of 12 Items Question A person pushes a box. He applies a force of 400 newtons, and he pushes
4 answers
asked by
yoki
506 views
Lifting the weight without a pulley requires a force of 400 newtons over a distance of 4 meters. How do these values change when
1 answer
asked by
goodog
282 views
An 8N force stretches a spring to the 20cm mark on a metre rule.if the extension on the spring is 4cm,calculate the original
5 answers
asked by
GEOFFREY
1,368 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
:)
470 views
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