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Mechanics
Page 9
Questions (39,953)
A block of weight 3.8N is launched up a 30 degree inclined plane of length 2.25m by a spring with spring constant 2.35kN/m and
4 answers
asked by
Harold
4,074 views
A 20.0 kg block is being pushed forward on a flat surface with a force of magnitude 45.0 N against a frictional force of 13.0 N.
4 answers
asked by
Alyssa
1,752 views
a block and tackle system of pulleys consisting of 5 pulleys is used to raise a load of 500N through a height of 12m. if the
4 answers
asked by
faith
2,042 views
A particle P of mass 2gms moves on the X-axis and is attracted towards origin O with a force numerically equal to 8x. If it is
5 answers
asked by
Vijaya
3,590 views
Two fi gure skaters are moving east together during a
performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2
5 answers
asked by
shan
3,231 views
A stone is projected vertically upwards with a speed of 30ms from the top of a tower of height 50m. Neglecting air resistance
6 answers
asked by
josh
2,804 views
A uniform pencil AB weiging 40g can be balanced holizontally on a knife edge at 2cm at the end where a mass of 60g is hung from
7 answers
asked by
Miso
1,637 views
A block and tackle system consisting of 5 pulleys is used to raise a load of 400 N through a height of 10 m. If the work done
7 answers
asked by
fred
3,357 views
What is the mass which causes a spring of k = 100 N/m to stretch by 10 cm?
5 answers
asked by
Robert
2,179 views
two uniform cylinders have different masses and different rotational inertias.they simultaneously start from rest at top of an
4 answers
asked by
owen
4,148 views
A body of mass 500g suspended from the end of a spiral spring which obeys Hooke's law, produced an extension of 10cm. If the
4 answers
asked by
Fynface
1,551 views
3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's
5 answers
asked by
Bill
3,038 views
a bolwing ball of mass 2.00 kg strikes a stationary pin of mass 5.00 x 10^2 g. the collision lasts for .60s after which the pin
4 answers
asked by
feez
2,354 views
A ball of mass 100g approaching a tennis player with a velocity of 10m/s, is hit back in the opposite direction with a velocity
4 answers
asked by
Mac FERGUSON
390 views
A force of 40N is applied at the end of a wire 4m long and produces an extension of 0.24mm. If the diameter of the wire is
5 answers
asked by
andre
3,150 views
A .25 kg pool ball is moving at 5.0m/s E towards a second identical ball at rest. After the collision, the first ball is seen
4 answers
asked by
Gar
3,136 views
A thin, light string is wrapped around the rim of a 4.00kg solid uniform disk that is 30.0cm in diameter. A person pulls on the
4 answers
asked by
Erin
2,011 views
A car of mass 760kg travels with a velocity of 14ms-1
If the brakes are applied,the car travels a distance of 55m before coming
4 answers
asked by
Alos
753 views
A girl whose weight is 30 N runs up a flight of stairs 5 m in 6 s. What is her average power
5 answers
asked by
Favour
1,270 views
a ping pall ball is dropped from 20m on a horizontal roof of a house and always reduce to 1/8of previous fall in each bounce
4 answers
asked by
jeshion
834 views
a) A 40 cm radius wheel is rotating at 20rad/sec. How fast is this wheel moving across the ground?
b) How far (in meters) will
4 answers
asked by
Martin
2,697 views
query=a stone of mass 30grams is placed in a measuring cylinder containing some water. the reading of the water level increases
4 answers
asked by
Matthew
1,346 views
a framed picture of weight 15N is hung on a wall, using a piece of string. The ends of the string are tied to two points, 0.60 m
4 answers
asked by
anon
1,098 views
Block A (60 N) and block B (40 N) are connected by a massless cord and are AT REST. Given ìs = 0.8.
The friction on A is : 1. 40
4 answers
asked by
help !
1,606 views
If a load of 1kg stretched a cord by 1.2cm, what is the force constant of the cord ?. ( g=10m/s2) *
4 answers
asked by
Prince
590 views
A 5 m, 10 kg seesaw is balanced by a little girl(25 kg) and her father(80 kg) at the extreme opposite ends. How far from the
4 answers
asked by
Pram
3,143 views
A 400-gram package lying on a horizontal surface is attached to a horizontal string which passes over a smooth pulley. When a
4 answers
asked by
Rheabelle
4,433 views
a 2 kg block slides down a frictionless incline from point A to point B. A force(magnitude P=3N) acts on the block between A and
4 answers
asked by
Robert
3,901 views
A bullet fired vertically upwards from a gun held 2m above the ground reaches its maximum height in 4sec, calculate its initial
4 answers
asked by
Saul
1,846 views
A flywheel with an axle 1.0cm in diameter is mounted in frictionless bearings and set in motion by applying a steady tension of
5 answers
asked by
Edwin
2,265 views
a key is dropped from a height of 30 m , If its distance from the ground at t seconds after the release is given by the position
4 answers
asked by
Anonymous
1,093 views
The spring balance is calibrated in newtons. State how the mass of the rock sample
may be found from the reading of the spring
4 answers
asked by
rida
1,381 views
a body weighing 40N drops freely from a hieght of 50m and penetrates into the ground by 100cm.find the average resistance to
4 answers
asked by
impulse and momentum
1,244 views
A METRE RULE IS BALANCED BY MASSES OF 24 G AND 16 G SUSPENDED FROM ITS ENDS. FIND THE POSITION OF ITS PIVOT.
4 answers
asked by
Anonymous
524 views
A ball of mass 0.5 kg, initially at rest, acquires a speed of 4 m/s immediately after being kicked by a force over a period of
4 answers
asked by
Anonymous
817 views
A rocket is used to place a synchronous satellite in orbit about the earth. What is the speed of the satellite in orbit?
4 answers
asked by
NJ
3,148 views
A body of mass 15kg is placed on a smooth plane which is inclined at 60° to the horizontal. Find:
a)the acceleration of the body
4 answers
asked by
Megan
1,421 views
A hydraulic jack has an input piston that is 1.2 cm2 in area and an output piston that is 144 cm2 in area. How much input or
4 answers
asked by
DariaV
2,341 views
A golf ball having an initial speed of 50m/s with an angle of 30 degree what is time of flight and range and velocity it which
4 answers
asked by
Sachin
1,337 views
an effort of 250N is applied to a pulley system consisting of two fixed and two movable pulleys to lift a load to a height of
5 answers
asked by
Charles
639 views
A spring of natural length 30.0cm is stretched 35.0cm by a load of 15N Cal calculate the extension produce
Pls answer nowwww
6 answers
asked by
Somto
882 views
A wheel is spinning with constant angular velocity the ratio of speed of a point on the end of rim to the speed of point halfway
3 answers
asked by
sunny chauhan
841 views
Please do an e.g for me by Calculate the force required to move a small piston that has an area of 2m,if the force of a large
4 answers
asked by
Clendar
1,062 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
304 views
1) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 s
a) What is the
3 answers
asked by
Isis
2,553 views
The weight in the following diagram has a mass of 0.50 kg and the cart has a mass of 0.26 kg. Friction is negligible. What is
3 answers
asked by
help
480 views
An 80.0 kg rollerblader is at rest at the top of a 100 m hill at a 7o incline. The coefficient of friction on the hill is 0.110.
3 answers
asked by
n
1,191 views
If a load of 100N is applied to a wire the extension is 1.2m calculate the energy stored in the wire
3 answers
asked by
Elizabeth
197 views
Find the bearing and airspeed for a plane to fly 630 miles due north in 3 hours if the wind is blowing from a direction of 318*
3 answers
asked by
lynn
1,300 views
A cable 45.4 m long is carrying a uniformly distributed load
along its span. If the cable is strung between two posts at the same
4 answers
asked by
Chris
1,297 views
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