Home
Class 11
PHYSICS
Suppose the tube in the previous problem...

Suppose the tube in the previous problem is kep vertical with A upward but the other conditions remain the same. The separation between the cross sections at A and B is 15/16 cm. Repeat parts a., b, and c of the previous problem. `take g=10ms^-2`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
a. `v_A =25cm/sec`
`b. v_B=50cm/sec`
c. From Bernoullis equation
`1/2pv_A^2+rhogh_A+pA=1/2pv_B^2=rhogh_B+pB`
`rarr P_A-P_B=(1/2)p(v_B^2-v_A^2)+rhog(h_B-h_A)`
`[Given h_A-h_B=(15/16)cm]`
`rarr P_A-P_B=1/2(2500-625)-1000x15/16`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Suppose the tube in the previous problem is kept verticla with B upward. Water enters through B at the rate of 1cm^3s^-1 . Repeat parts a, b, and c. Note that the speed decreases as the water falls down.

Suppose the smaller pulley of the previous problem has its radius 5.0 cm and moment of inertia 0.10 kg-m^2. Find the tension in the part of the string joiningk the pulleys.

Suppose the particle of the previous problem has a mass m and a speed v before the collision and it sticks to the rod after the collision. The rod has a mass M. a. Find the velocity of the particle with respect to C of the system consituting the rod plus the particle. b. Find the velociyt of the particle with respect to C before the collision. c. Find the velocity of the rod with respect to C before the colision. e. find the moment of inertia of the system about the vertical axis through the centre of mass C after the collision. f. Find the velociyt of the centre of mass C and the angular velocity of the system about the centre of mass after the collision.

Consider the situation of the previous problem. A charge of 2.0xx 10 ^(-4) C is moved from the point A to the point B. find the change in electrical potential energy U_B-U_A for the cases (a) , (b) and ( c ).

A heavy particle is usspended by a 1.5 m long string . It is given a horizontal velocityof sqrt(57) m/s. a. Find the angle made by the string with the upward vertical, when it becomes slack. B. Find the speed of the particle at this instant. c.Find the maximum height reached by the particle over the point of suspension. Take g=10 m/s^2

One end of a metal wire is fixed to a ceiling and a load of 2 kg hangs from the other end. A similar wire is attached to the bottom of the load and another load of 1 kg hangs from this lower wire. Find the longitudinal strain in both wires. Area of cross section of each wire is 0.005 cm^2 and Young modulus of the metal is 2.0xx10^11 Nm^-2. Take g=10ms^-2

Figure shows two block A and B , each having a mass of 320 g connected by a light string passing over a smooth light pulley. The horizontal surface on which the block A can slide is smooth. The block A is attached to spring constant 40 N//m whose other end is fixed to a support 40 cm above the horizontal surface. Initially, the spring is vertical and unstretched when the system is released to move. Find the velocity of the block A at the instant it breaks off the surface below it. Take g = 10 m//s^(2) .

Consider the stituation shown in figure. The elevator is going up with an acceleration of 2.00 ms^-2 and the focal length of the mirror is 12.0 cm. All the surfaces are smooth and the pulley is light. The mass-pulley system is released from rest (with respect to the elevator) at t=0 when the distance of B from the mirror is 42.0 cm. Find the distance between the image of the block B and the mirror at t=0.200 s. Take g=10 ms^-2

Water is filled in a rectangular tank of size 3mxx2mxx1m . a) Find the total force exerted by the water on the bottom surface of the tank. b) Consider a vertical side of area 2mxx1m . Take a horizontal strip of wide deltax metre in this side, situated at a depth of x metre from the surface of water.Find the force by the water on this strip. c) Find the torque of the force calculate in part b) about the bottom edge of this side. d) Find the total force by the water on this side. e) Find the total torque by the water on the side about the bottom edge. neglect the atmospheric pressure and take =10ms^-2 .

A track consists of two circular pars ABC and CDE of equal radius 100 m and joined smoothly as shown in figure.Each part subtends a right angle at its centre. A cycle weighing 100 kg together with rider travels at a constant speed of 18 km/h on the track. A. Find the normal contact force by the road on the cycle when it is at B and at D. b.Find the force of friction exerted by the track on the tyres when the cycle is at B,C and D. c. Find the normal force between the road and the cycle just before and just after the cycle crosses C. d. What should be the minimum friction coefficient between the road and the tyre, which will ensure that the cyclist can move with constant speed? Take g=10 m/s^2

HC VERMA-FLUID MECHANICS-All Questions
  1. A cubical block of wood weighing 200 g has a lead piece fastened under...

    Text Solution

    |

  2. Solve the prievious problem if the lead piece is fastened on the top s...

    Text Solution

    |

  3. A cubical metal block of edge 12 cm floats in mercry with one fifth of...

    Text Solution

    |

  4. A hollow spherical body of inner and outer radii 6 cm, and 8 cm respec...

    Text Solution

    |

  5. A solid sphere of radius 5 cm floats in water. If a maximum load of 0....

    Text Solution

    |

  6. Find the ratio of the weights, as measured by a spring balance, of a 1...

    Text Solution

    |

  7. A cylindrical object of outer diameter 20 cm and mass 2 kg floats in w...

    Text Solution

    |

  8. A cylindrical object of outer diameter 10 cm, height 20 cm and density...

    Text Solution

    |

  9. A wooden block of mass 0.5 kg and density 800 kgm^-3 is fastened to th...

    Text Solution

    |

  10. An ice cube of edge a is placed in an empty cylindrical vessel of radi...

    Text Solution

    |

  11. A U-tube containing a liquid is accelerated horizontally with a consta...

    Text Solution

    |

  12. At Deoprayag (Garhwal, UP) river Alaknanda mixes with the river Bhagi...

    Text Solution

    |

  13. Water flows through a horizontal tube of variable cross-section. The a...

    Text Solution

    |

  14. Suppose the tube in the previous problem is kep vertical with A upward...

    Text Solution

    |

  15. Suppose the tube in the previous problem is kept verticla with B upwar...

    Text Solution

    |

  16. Water flows through a tube shown in figure. The areas of cross section...

    Text Solution

    |

  17. Water flows through a horizontal tube as shown in figure. If the diffe...

    Text Solution

    |

  18. Water flows through the tube shown in figure. The areas of cross secti...

    Text Solution

    |

  19. Water leaks out from an open tank through a hole of area 2mm^2 in the ...

    Text Solution

    |

  20. Water level is maintained ina cylindrical vessel up to a fixed height ...

    Text Solution

    |