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Classical Mechanics
Three identical particles are joined together by a thread in the way such that A is l meters away from point O, B 2l meters away and C 3l meters away. All the three particles are moving on a smooth horizontal plane about point O. If the speed of the outermost particle is v then find the ratio of tension in the three sections of the thread.
Classical Mechanics
A uniform rod of mass m and length l rotates in a horizontal plane with an angular velocity w about a vertical axis passing through one end. The tension in the rod at a distance x from the axis is :-
Classical Mechanics
A satellite in force free space sweeps stationary interplanetary dust at a rate of dM/dt = kV where M is mass and V is the speed of satellite and k is a constant.Tangential acceleration of satellite is
Options are-
(1) -kV^2/2M
(2) -kV^2
(3) -2kV^2/M
(4) -kV^2/M
Options are-
(1) -kV^2/2M
(2) -kV^2
(3) -2kV^2/M
(4) -kV^2/M
Classical Mechanics
astronauts mr. x and mr. y float in zero gravity space with no velocity. mr y throws a mass of 5 kg towards x with speed 2 ms. if mr. x catches it the change in velocity of x and y are
Classical Mechanics
In a soccer practice session the football is kept at the centre of the field 40 yards from the 10 ft high goalposts.A goal is attempted by kicking the football at a speed of 64 ft/s at an angle of 45 degree to the horizontal.Will the ball reach the goal post?
Classical Mechanics
the capillary rise of water in glass capillary tube z h. angle of contact between glass and water is 0. nother capillary tube having same dimensions as the glass tube is made with a material which the angle of contact with water is 90.the capillary rise of water in second tube is?
Classical Mechanics
Two identical pots of water, called pot A and pot B,contain 1 litres and 2 litres of water, respectively. Pot A is initially at a temperature of 30º C and pot B is at a temperature of 70º C. Both pots are placed on identical stovetops and heat is supplied at an identical rate to each
Classical Mechanics
An object that has mass m=2 kg is placed on a plane having an inclination to the horizontal of α = 30O. The coefficient of friction between the object and the surface is 0.3. Find the horizontal force necessary to act on the object that would cause the object to move up the slope with a constant speed.
This is the answer I got.
Force that is making the mass to tend to slide along the slope= mgsinα=2x9.8xsin30=9.8N
Friction force Fr= mgcos=0.32x9.8xcos30=5.09
Force parallel to plane to overcome resisting force=T=mgcos+ mgsinα=9.8+5.09=14.89N
F=T/cos=14.89/(cos30)=17.19N
This is the answer I got.
Force that is making the mass to tend to slide along the slope= mgsinα=2x9.8xsin30=9.8N
Friction force Fr= mgcos=0.32x9.8xcos30=5.09
Force parallel to plane to overcome resisting force=T=mgcos+ mgsinα=9.8+5.09=14.89N
F=T/cos=14.89/(cos30)=17.19N
Classical Mechanics
particle revolving on circular motion come back to its original position.what would be its linear velocity and angular velocity????will it be zero as displacement is zero when particle reach to original position
Classical Mechanics
: An object of mass m slides on a plane inclined at an angle with the horizontal [as
shown in the Fig-1]. The coefficient of friction between the object and the plane is . The
object starts sliding at some non-zero angle with the X-axis and its position vector at time t is
given as ˆ ˆ r t x t i y t j ( ) (
Obtain the equation of the trajectory of the object
shown in the Fig-1]. The coefficient of friction between the object and the plane is . The
object starts sliding at some non-zero angle with the X-axis and its position vector at time t is
given as ˆ ˆ r t x t i y t j ( ) (
Obtain the equation of the trajectory of the object
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#339914 on Dec 2023
#339914 on Dec 2023