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Recent questions tagged mechanics
+3
votes
1
answer
An ice cube is floating in water above which a layer of lighter oil is poured. As the ice melts completely,
asked
Apr 7, 2019
in
JEE
by
kratos
class-11
jee mains
mechanics
jee
cbse
fluid mechanics
+1
vote
1
answer
Two identical weightless rods are hinged to each other and to a horizontal beam (Fig. 13). The rigidity of
asked
Apr 7, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
A rubber string of mass m and rigidity k is suspended at one end. Determine the elongation Δl of the string.
asked
Apr 6, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+2
votes
1
answer
The equation of motion of a particle moving on circular path (radius 200 m) is given by * = 18 t + 3t^2 – 2t^3
asked
Apr 6, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
Sand drops fall vertically at the rate of 2kg/sec on to a conveyor belt moving horizontally with the velocity of 0.2 m/sec.
asked
Apr 5, 2019
in
Class 12
by
kratos
mechanics
jee mains
jee
neet
+3
votes
1
answer
A jet plane having a cabin of length l = 50 m flies along the horizontal with an acceleration a = 1 m/*^2.
asked
Apr 5, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+3
votes
1
answer
A block of mass m is placed on a horizontal surface. The coefficient of friction between them is μ.
asked
Apr 2, 2019
in
JEE
by
kratos
forces
class-11
jee
mechanics
kinematics
jee mains
+2
votes
1
answer
A bend in a level road has a radius of 100 m. The maximum speed with which a car turning this bend without skidding,
asked
Apr 1, 2019
in
JEE
by
kratos
class-8
circular motion
motion in a plane
class-11
jee
mechanics
pressure
force
jee mains
laws of motion
+2
votes
1
answer
A rope is passed round a stationary horizontal log fixed at a certain height above the ground.
asked
Apr 1, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
Which one of the following is the correct sequence of the given substances in the decreasing order of their densities?
asked
Mar 30, 2019
in
Mathematics
by
kratos
csat
properties of matter
mechanics
+1
vote
1
answer
A block slides down an inclined surface of inclination 30 with the horizontal. Starting from
asked
Mar 30, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+3
votes
1
answer
How much pressure will a man of weight 80 kg f exert on the ground when (i) he is lying and (2) he is standing on his feet.
asked
Mar 30, 2019
in
Class 11
by
kratos
class-8
floation
class-11
mechanics
properties of matter
pressure
icse
force
class-9
+3
votes
1
answer
A particle moving on a smooth horizontal surface strikes a stationary wall. The angle of strike is equal to the angle of rebound & is equal to 37°
asked
Mar 29, 2019
in
JEE
by
kratos
class- 11
class-11
jee
mechanics
rotational mechanics
jee mains
kinetic theory of gases
+3
votes
1
answer
Block A of mass M in the system shown in the figure slides down the incline at a constant speed.
asked
Mar 29, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
A circular turn table of radius 0.5 m has a smooth groove as shown in fig. A ball of mass 90
asked
Mar 28, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
One rope of a swing is fixed above the other rope by b. The distance between the poles of the swing is a.
asked
Mar 28, 2019
in
JEE
by
kratos
mechanics
jee mains
jee
+2
votes
1
answer
A ball is suspended by an inextensible thread of length l from a point on a vertical wall.
asked
Mar 28, 2019
in
Class 12
by
kratos
irodov
neet
oscillations
electricity
jee
aiims
oscillations and wave
mechanics
jee mains
magnetism
+2
votes
1
answer
While the ball moves from B to A. (A) work done by all the forces on ball is zero.
asked
Mar 27, 2019
in
Class 11
by
kratos
work
kinetic energy
class-11
mechanics
energy and power
properties of matter
laws of motion
+2
votes
1
answer
A horizontal force F is exerted on a 20 kg block to push it up an inclined plane having an lnclination of 30.
asked
Mar 27, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
+1
vote
1
answer
A hexagonal pencil placed on an inclined plane with a slope α at right angles to the generatrix
asked
Mar 27, 2019
in
JEE
by
kratos
jee
mechanics
jee mains
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