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
Sahay Sir > Question Answers > 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
A man of mass M =58 kg jumps from an aeroplane as shown in Fig. He sees the hard ground below him and a lake at a distance d = 1 m from the point directly below him. He immediately puts off his jacket (mass m =2 kg) and throws it in a direction directly away from the lake. If he just fails to strike the ground, find the distance (in 101m) he should walk now to pick his jacket. (Neglect air resistance and take the velocity of man at the time of jump with respect to earth zero.)
22
Sep
A man of mass M =58 kg jumps from an aeroplane as shown in Fig. He sees the hard ground below him and a lake at a distance d = 1 m from the point directly below him. He immediately puts off his jacket (mass m =2 kg) and throws it in a direction directly [...]
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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 child of mass 4 kg jumps from cart B to cart A and then immediately back to cart B. The mass of each cart is 20 kg and they are initially at rest. In both the cases the child jumps at 6 m/s relative to the cart. If the cart moves along the same line with negligible friction with the final velocities of VB and VA, respectively, find the ratio of 6 VB and 5 vA.
22
Sep
A child of mass 4 kg jumps from cart B to cart A and then immediately back to cart B. The mass of each cart is 20 kg and they are initially at rest. In both the cases the child jumps at 6 m/s relative to the cart. If the cart moves along the same [...]
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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 massless spring of force constant 1000 N m/s is compressed a distance of 20 cm between discs of 8 kg and 2 kg, spring is not attached to discs. The system is given an initial velocity 3 m/s perpendicular to length of spring as shown in the figure. What is ground frame velocity of 2 kg block (in m/s) when spring regains its natural length.
22
Sep
A massless spring of force constant 1000 N m/s is compressed a distance of 20 cm between discs of 8 kg and 2 kg, spring is not attached to discs. The system is given an initial velocity 3 m/s perpendicular to length of spring as shown in the figure. What is ground frame velocity of [...]
Tags:
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 massless spring of force constant 1000 N m/s is compressed a distance of 20 cm between discs of 8 kg and 2 kg ,
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 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. [...]
Tags:
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 ,
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 ,
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 [...]
Tags:
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 [...]
Two blocks of mass m1 and m2 are connected by a spring in its natural length having spring constant k and are placed on a smooth surface. Block m1 and m2 are given vel.ocities v1 and v2 as shown in fig .
21
Sep
Two blocks of mass m1 and m2 are connected by a spring in its natural length having spring constant k and are placed on a smooth surface. Block m1 and m2 are given vel.ocities v1 and v2 as shown in fig . A strip of wood mass M and length l is placed on a [...]
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 [...]