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When can the speed and average speed of ...

When can the speed and average speed of a vehicle be equal?

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For a body moving along a circular path the average velocity and average speed can never be equal

For a body moving along a circular path the average velocity and average speed can never be equal.

Knowledge Check

  • The average speed of gas molecules is equal to

    A
    `((8 RT)/(pi M))^(1//2)`
    B
    `((3 RT)/( M))^(1//2)`
    C
    `((2 RT)/( M))^(1//2)`
    D
    `(( RT)/( M))^(1//2)`

  • STATEMENT - 1 : A particle is projected vertically upwards with speed v. Starting from initial point, its average velocity is less than average speed than average speed when particle is returning back to ground. and STATEMENT - 2 : When particle turns back, its displacement is less than distance covered.

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement-1 is True, Statement-2 is False
    D
    Statement-1 is False, Statement-2 is True

  • Assertion : On a curved path, average speed of a particle can never be equal to average velocity. Reason : Average speed is total distance travelled divided by total time. Whereas average velocity is, final velocity plus initial velocity divided by two.

    A
    If both Assertion and Reason are correct and Reason is the correct explanation of assertion.
    B
    If both Assertion and Reason are correct but Reason in not the correct explanation of Assertion.
    C
    If Assertion is true but Reason is false.
    D
    If Assertion is false but Reason is true.

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    For finding average speed of a vehicle covering equal distances in different time intervals, we prefer to use (a) A.M. (b) G.M. (c) H.M. (d) Median

    How is average speed obtained ?

    When is the average speed of an object equal to the magnitude of its average velocity ? Give reason also.

    Displacement || Average speed

    A circular track of radius 600 m is to be designed for vehicles passing at an average speed of 54 km/hr. The required angle of banking is :

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