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Grade: 12
        
Plzz explian a, b and c part clearly in detail.....thank u
4 months ago

Answers : (3)

Vikas TU
9499 Points
							
b. ​inthe following case volume of water striking the wall per sec=av    (a=cross section of the cylinder,v=velocity of water ie length of cyl striking per sec.
but in this problem as water is making angle
,volume of water striking per sec=av sin?
mass striking /sec=avpsin?
as bouncing back, so momentum change /sec=force=2mv   ;m=mass v= vel
=2av2 pcostheta.
4 months ago
Vikas TU
9499 Points
							
  1. The net orce is defined as the rate of chnge of momentum F = d(mv)/dt , This is the case of same velocity and changing mass so, F=-u*(dm/dt) , Hope this helps, 
4 months ago
aswanth nayak
68 Points
							
 
 ​inthe following case volume of water striking the wall per sec=av    (a=cross section of the cylinder,v=velocity of water ie length of cyl striking per sec.
but in this problem as water is making angle
,volume of water striking per sec=av sin?
mass striking /sec=avpsin?
as bouncing back, so momentum change /sec=force=2mv   ;m=mass v= vel
=2av2 pcostheta.
  1. The net orce is defined as the rate of chnge of momentum F = d(mv)/dt , This is the case of same velocity and changing mass so, F=-u*(dm/dt) , Hope this helps, 
3 months ago
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Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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