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Application In Mechanics Test - 1
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Application In Mechanics Test - 1

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  • Question 1/9
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    The distance travelled s (in metre) by a particle in t second is given by . The speed of the particle after 1 sec. will be

    Solutions

     

  • Question 2/9
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    A particle moves in a straight line in such a way that its velocity at any point is given by , where x is measured from a fixed point. The acceleration is

    Solutions

    Hence, acceleration is uniform.

     

  • Question 3/9
    1 / -0

    The position of a point in time 't' is given by  Its acceleration at time 't' is

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  • Question 4/9
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    If the path of a moving point is the curve , then its acceleration at any instant

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  • Question 5/9
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    A stone thrown vertically upwards from the surface of the moon at velocity of 24 m/sec. reaches a height of  after t sec. The acceleration due to gravity in m/sec2 at the surface of the moon is

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  • Question 6/9
    1 / -0

    The rate of change of the surface area of a sphere of radius r when the radius is increasing at the rate of 2cm/sec is proportional to

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  • Question 7/9
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    If the volume of a spherical balloon is increasing at the rate of 900 cm2/sec. then the rate of change of radius of balloon at instant when radius is 15 cm [in cm/sec]

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  • Question 8/9
    1 / -0

    A man of height 1.8 m is moving away from a lamp post at the rate of 1.2 m/sec. If the height of the lamp post be 4.5 meter, then the rate at which the shadow of the man is lengthening

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  • Question 9/9
    1 / -0

    A 10 cm long rod AB moves with its ends on two mutually perpendicular straight lines OX and OY. If the end A be moving at the rate of 2 cm/sec. then when the distance of A from O is 8 cm, the rate at which the end B is moving, is

    Solutions

     

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