Physics-
General
Easy

Question

A particle is projected with a speed v at 45 degree with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height h is

  1. Zero    
  2. fraction numerator m v h to the power of 2 end exponent over denominator square root of 2 end fraction    
  3. fraction numerator m v h over denominator square root of 2 end fraction    
  4. fraction numerator m v h to the power of 3 end exponent over denominator square root of 2 end fraction    

The correct answer is: fraction numerator m v h over denominator square root of 2 end fraction


    Velocity of particle at maximum height h is v to the power of ´ end exponent equals v cos invisible function application theta where v equals initial velocity of particle at which it is projected, theta equals angle of projection
    Angular momentum, L equals m v to the power of ´ end exponent h equals m v cos invisible function application theta h
    equals m v h cos invisible function application 45 degree equals fraction numerator m v h over denominator square root of 2 end fraction

    Related Questions to study

    General
    physics-

    A body of mass 1kg is rotating in a vertical circle of radius 1m. What will be the difference in its kinetic energy at the top and bottom of the circle? (Take g equals 10 blank m s to the power of negative 2 end exponent)

    A body of mass 1kg is rotating in a vertical circle of radius 1m. What will be the difference in its kinetic energy at the top and bottom of the circle? (Take g equals 10 blank m s to the power of negative 2 end exponent)

    physics-General
    General
    physics-

    A particle of mass m moves with constant speed along a circular path of radius r under the action of force F. Its speed is

    A particle of mass m moves with constant speed along a circular path of radius r under the action of force F. Its speed is

    physics-General
    General
    physics

    A particle is moving in a straight line with initial velocity of 200 ms-1 acceleration of the particle is given by a equals 3 t squared minus 2 t. Find velocity of the particle at 10 second.

    A particle is moving in a straight line with initial velocity of 200 ms-1 acceleration of the particle is given by a equals 3 t squared minus 2 t. Find velocity of the particle at 10 second.

    physicsGeneral
    parallel
    General
    physics

    A particle is moving in a circle of radius R with constant speed. It coveres an angle theta in some time interval. Find displacement in this interval of time.

    A particle is moving in a circle of radius R with constant speed. It coveres an angle theta in some time interval. Find displacement in this interval of time.

    physicsGeneral
    General
    chemistry-

    The shape of AB3 E molecule (B = bond pair, E = lonepair)

    The shape of AB3 E molecule (B = bond pair, E = lonepair)

    chemistry-General
    General
    chemistry-

    Which of the following is planar ?

    Which of the following is planar ?

    chemistry-General
    parallel
    General
    chemistry-

    The bond between chlorine and bromine in BrCl is

    The bond between chlorine and bromine in BrCl is

    chemistry-General
    General
    chemistry-

    For which of the following molecule significant m¹0
    A) 
    B) 
    C) 
    D) 

    For which of the following molecule significant m¹0
    A) 
    B) 
    C) 
    D) 

    chemistry-General
    General
    chemistry-

    Which bond angle q., would result in the maximum dipole moment for the triatomic molecule XY2 shown below

    Which bond angle q., would result in the maximum dipole moment for the triatomic molecule XY2 shown below

    chemistry-General
    parallel
    General
    physics

    A particle moves in straight line. Its position is given by x=2+5t-3t2. Find the ratio of initial velocity and initial acceleration.

    A particle moves in straight line. Its position is given by x=2+5t-3t2. Find the ratio of initial velocity and initial acceleration.

    physicsGeneral
    General
    physics

    As shown in the figure a particle is released from P. It reachet at Q point  at time t1 and reaches at point R at time t2 so t subscript 1 over t subscript 2= ……

    As shown in the figure a particle is released from P. It reachet at Q point  at time t1 and reaches at point R at time t2 so t subscript 1 over t subscript 2= ……

    physicsGeneral
    General
    physics

    particles A and B are released from the same height at an interval of 2 S. After some time t the distance between A and B is 100m. Caleulate time t.

    particles A and B are released from the same height at an interval of 2 S. After some time t the distance between A and B is 100m. Caleulate time t.

    physicsGeneral
    parallel
    General
    physics

    Given graph shows relation between position (X)→ time (t) Find the correct graph of velocity→ time

    Given graph shows relation between position (X)→ time (t) Find the correct graph of velocity→ time

    physicsGeneral
    General
    physics

    Here are displacement → time graphs of particle A and B .if Vand VB are velocities of the particles respectively, then V subscript A over V subscript B =……

    Here are displacement → time graphs of particle A and B .if Vand VB are velocities of the particles respectively, then V subscript A over V subscript B =……

    physicsGeneral
    General
    physics

    Given graph shows relation between position and time. Find correct graph of acceleration → time

    Given graph shows relation between position and time. Find correct graph of acceleration → time

    physicsGeneral
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.