मराठी

Is thrust a scalar or vector quantity?

Advertisements
Advertisements

प्रश्न

Is thrust a scalar or vector quantity?

एका वाक्यात उत्तर
Advertisements

उत्तर

Thrust is a vector quantity.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Fluids - Exercise 3 [पृष्ठ १७७]

APPEARS IN

फ्रँक Physics [English] Class 9 ICSE
पाठ 4 Fluids
Exercise 3 | Q 4 | पृष्ठ १७७

संबंधित प्रश्‍न

State whether the following statement is true or false :

The buoyant force depends on the nature of object immersed in the liquid


A piece of wood floats on water. The buoyant force on wood will be


Describe an experiment to determine the density of the material of a coin.


Explain why an iron needle sinks in water, but a ship made of iron floats on water.


How does the pressure exerted by a solid and fluid differ?


The diagram below in Fig. 4.12 shows a device which makes the use of the principle of transmission of pressure.

  1. Name the parts labelled by the letters X and Y.
  2. Describe what happens to valves A and B and to the quantity of water in the two cylinders when the lever arm is moved down.
  3. Give reasons for what happens to valves A and B in part (ii).
  4. What happens when the release valve is opened?
  5. What happens to valve B in cylinder P when the lever arm is moved up?
  6. Give a reason for your answer in part (v).
  7. State one use of the above device.

The pressure P1 at the top of a dam and Pat a depth h form the top inside water (density p) are related as : 


A vessel contains water up to a height of 1.5 m. Taking the density of water 103 kg m-3, acceleration due to gravity 9.8 m s-2 and area of base of vessel 100 cm2, calculate: (a) the pressure and (b) the thrust at the base of vessel.


A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:

  1. the volume of body,
  2. the upthrust on body and
  3. the apparent weight of body in water. 

Calculate the hydrostatic pressure exerted by water at the bottom of a beaker. Take the depth of water as 40 cm, the density of water 1000 kgm−3 and g = 9.8 ms−2.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×