Home
Class 11
PHYSICS
Get an expression for stopping distance ...

Get an expression for stopping distance of a vehicle in terms of intial velocity `v_(a)` and deceleration "a"…

Text Solution

Verified by Experts

Let s be the distance travelled by a vehicle before it stops
Using `v^(2)-u^(2)=2as,`
`0_(0)^(2)=-2as`
`s=(v_(0)^(2))/(2a)`
The stopping distance is directily proportional to `v_(0)^(2)`. By doubling intial velocity it increase stopping distance by 4 times. Provided deceleration is kept as constant.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SAMPLE PAPER -4

    FULL MARKS|Exercise PART-III|9 Videos
  • SAMPLE PAPER -4

    FULL MARKS|Exercise PART-IV|10 Videos
  • SAMPLE PAPER -4

    FULL MARKS|Exercise PART-IV|10 Videos
  • SAMPLE PAPER -3 (SOLVED)

    FULL MARKS|Exercise PART-IV|10 Videos
  • SAMPLE PAPER -6 (SOLVED)

    FULL MARKS|Exercise PART-IV|12 Videos

Similar Questions

Explore conceptually related problems

What is the stopping distance for a vehicle of mass m moving with speed v along a level road, if the co-efficient of friction between the tyres and the road is mu ?

What is the stopping distance for a vehicle of mass m moving with speed v along a level road, if the co-efficient of friction between the tyres and the road is mu ?

Knowledge Check

  • Which of the following pair of expressions for drift velocity v_d is correct?

    A
    `v_d = (eE)/m tau and v_d = I/(nAe)`
    B
    `v_d = (eE)/m tau and v_d = IR`
    C
    `v_d = (- eE)/m tau and v_d = J/(nAe)`
    D
    `v_d = ( - e^2 E)/m tau and v_d = 1/(n^2 Ae)`
  • Similar Questions

    Explore conceptually related problems

    Why is it convenient to express the distance of stars in terms of light year (or) parsec rather than in km?

    Why is it convenient to express the distance of stars in terms of light year (or) parsec rather than in km?

    Why is it convenient to express the distance of stars in terms of light year (or) parsec rather than in km?

    Why is it sonventient to express the distance of starts in terms of light year (or) parsec rather than in km?

    Why is it sonventient to express the distance of starts in terms of light year (or) parsec rather than in km?

    Explain the principle of homogenity of dimensions and derive an expression for the force F acting on a body moving in a circular path depending on the mass of the body (m) , velocity (9v) and radius (r ) of the circular path. Obtain the expression for the force by the dimensional analysis method (take the value k=1 )

    Explain the principle of homogenity of dimensions and deriye an expression for the force F acting on a body moving in a circular path depending on the mass of the body (m), velocity (v) and radius (r) of the circular path. Obtain the expression for the force by the dimensional analysis method (take the value k = 1)