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A frog sits on the end pf a long boord of length L = 5 m. the boord rests on a fricationless horizontal table. The frog wants os the minimum takes – off speed i.e relative to ground v that allows the frog yo do the trick? The board and the frog have equal masses.
21
Sep
A frog sits on the end pf a long boord of length L = 5 m. the boord rests on a fricationless horizontal table. The frog wants os the minimum takes – off speed i.e relative to ground v that allows the frog yo do the trick? The board and the frog have equal masses. [...]
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A car of mass m is initially at rest on the boat of mass M tied to the wall of dock through a massless ,
A strip of wood mass M and length l is placed on a smooth horizontal surface. An insect of mass m starts from rest at one end of the strip and walks to the other end in time t ,
moving with a constant speed. The speed of the insect as seen from the ground is ,
A ball of mass `m` is allowed to roll down the wedge of mass `M = 2 m` as shown in the figure. What is the displacement of wedge (in `m`) when the ball reaches from `A` to `B`? Take `theta=45^(@), h=1 m, d = 4 m`
21
Sep
A ball of mass `m` is allowed to roll down the wedge of mass `M = 2 m` as shown in the figure. What is the displacement of wedge (in `m`) when the ball reaches from `A` to `B`? Take `theta=45^(@), h=1 m, d = 4 m` A ball of mass `m` is allowed to [...]
Figure shows a wedge A of mass 6 m smooth semicircular groove of radius a = 8.4 m placed on a smooth horizontal surface. A small block B of mass m is released from a position in groove where its radius is horizontal. Find the speed (in m/s) of bigger block when smaller block reaches its bottom most position.
21
Sep
Figure shows a wedge A of mass 6 m smooth semicircular groove of radius a = 8.4 m placed on a smooth horizontal surface. A small block B of mass m is released from a position in groove where its radius is horizontal. Find the speed (in m/s) of bigger block when smaller block reaches [...]
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A car of mass m is initially at rest on the boat of mass M tied to the wall of dock through a massless ,
A strip of wood mass M and length l is placed on a smooth horizontal surface. An insect of mass m starts from rest at one end of the strip and walks to the other end in time t ,
moving with a constant speed. The speed of the insect as seen from the ground is ,
Three particles A, B and C of equal mass move with equal speed V=5ms−1 along the medians of an equilateral triangle as shown in the figure. They collide at the centroid G of the triangle. After the collision, A comes to rest, B retraces its path with the speed V= 5 m/s. What is the speed of C?
21
Sep
Three particles A, B and C of equal mass move with equal speed V=5ms−1 along the medians of an equilateral triangle as shown in the figure. They collide at the centroid G of the triangle. After the collision, A comes to rest, B retraces its path with the speed V= 5 m/s. What is the [...]
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A comes to rest ,
B and C of equal mass move with equal speed V=5ms−1 along the medians of an equilateral triangle as shown in the figure. They collide at the centroid G of the triangle. After the collision ,
B retraces its path with the speed V= 5 m/s. What is the speed of C? ,
Three particles A ,
Figure shows position and velocities of two particles moving under gravitional attraction in space at time t = 0. The position of centre of mass after one second is ‘*’ m. Fill ‘*’.
21
Sep
Figure shows position and velocities of two particles moving under gravitional attraction in space at time t = 0. The position of centre of mass after one second is ‘*’ m. Fill ‘*’. Figure shows position and velocities of two particles moving under gravitional attraction in space at time t = 0. The position of [...]
A car of mass m is initially at rest on the boat of mass M tied to the wall of dock through a massless, inextensible string. The car accelerates from rest to velocity v0 in times to. At t=t0 the car applies brake and comes to rest relative to the boat in negligible time. Neglect friction between the boat and water: the time ‘t’ at which boat will strike the wall is
21
Sep
A car of mass m is initially at rest on the boat of mass M tied to the wall of dock through a massless, inextensible string. The car accelerates from rest to velocity v0 in times to. At t=t0 the car applies brake and comes to rest relative to the boat in negligible time. Neglect [...]
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A car of mass m is initially at rest on the boat of mass M tied to the wall of dock through a massless ,
A strip of wood mass M and length l is placed on a smooth horizontal surface. An insect of mass m starts from rest at one end of the strip and walks to the other end in time t ,
moving with a constant speed. The speed of the insect as seen from the ground is ,
A long block A is at rest on a smooth horizontal surface. A small block B whose mass is half of mass of A is placed on A at one end and is given an initial velocity u as shown in figure. The coefficient of friction between the blocks is μ.
21
Sep
A long block A is at rest on a smooth horizontal surface. A small block B whose mass is half of mass of A is placed on A at one end and is given an initial velocity u as shown in figure. The coefficient of friction between the blocks is μ. A strip of wood [...]
Two men A and B of masses 50 kg and 70 kg respectively are standing on the ends of a plank of mass 80 kg. The length of plank is 5 m and it is kept on a smooth horizontal surface. Now man starts moving and exchange their positions on the plank. Then
21
Sep
Two men A and B of masses 50 kg and 70 kg respectively are standing on the ends of a plank of mass 80 kg. The length of plank is 5 m and it is kept on a smooth horizontal surface. Now man starts moving and exchange their positions on the plank. Then A strip [...]
A man of mass m walks from end A to the other end B of a plank of mass M and length l, placed on a smooth horizontal surface. The coefficient of friction between man and plank is mu as no external in horizontal direction.
21
Sep
A man of mass m walks from end A to the other end B of a plank of mass M and length l, placed on a smooth horizontal surface. The coefficient of friction between man and plank is mu as no external in horizontal direction. A man of mass m walks from end A to [...]
A stone is projected from a point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h, and then attain a height 2 h above the ground. If, at the instant of projection, the bird were to fly away horizontal with a uniform speed, find the ratio of the horizontal velocities of the bird and the stone if the stone still hits the bird.
21
Sep
A stone is projected from a point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h, and then attain a height 2 h above the ground. If, at the instant of projection, the bird were to fly away horizontal with a [...]
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A stone is projected from a point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h ,
and then attain a height 2 h above the ground. If ,
at the instant of projection ,
find the ratio of the horizontal velocities of the bird and the stone if the stone still hits the bird. ,
the bird were to fly away horizontal with a uniform speed ,