Home
Class 11
PHYSICS
In the above problem car got a stopping ...

In the above problem car got a stopping distance of 80m on cement road then `mu_(k)` is `(g = 10ms^(-2))`

A

0.2

B

0.25

C

0.3

D

0.35

Text Solution

Verified by Experts

The correct Answer is:
B

`v^(2)-u^(2)=2as, a=mug`
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - I (C.W)(MOTION OF A BODY ON THE INCLINED PLANE)|7 Videos
  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - I (C.W)(PULLING/PUSHING A BODY)|1 Videos
  • LAW OF MOTION

    NARAYNA|Exercise EXERCISE - I (C.W)(LAWS OF FRICTION)|2 Videos
  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos
  • MATHEMATICAL REVIEW & PHYSICAL WORLD

    NARAYNA|Exercise C.U.Q|13 Videos

Similar Questions

Explore conceptually related problems

A stone is thrown with a speed of 10 ms^(-1) at an angle of projection 60^(@) . Find its height above the point of projection when it is at a horizontal distance of 3m from the thrower ? (Take g = 10 ms^(-2) )

A car running with a velocity 72 kmph on a level road is stoped after travelling a distance of 30m after disengaging its engine (g =10m^(-2)) The coefficient of friction between the road and the tyres is .

A ball is thrown vertically downward with a velocity of 20m/s from the top of a tower,It hits the ground after some time with a velocity of 80m/s .The height of the tower is : (g=10m/g^(2))

From the top of a tower, 80m high from the ground a stone is thrown in the horizontal direction with a velocity of 8 ms^(1) . The stone reaches the ground after a time t and falls at a distance of d from the foot of the tower. Assuming g=10ms^(2) , the time t and distance d are given respectively by

A particle of mass 0.1kg has an iniital speed of 4ms^(-1) at a point A on a roudh horizontal road. The coefficient of friction between the object and road is 0.15. The particle moves to a point B at a distance of 2m from A. What is the speed of particle at B ? Take g=10ms^(-2)

Repeat the above problem, if instead of mu , we are given mu_(s) and mu_(k) ,where mu_(s) =0.6 and mu_(k) =0.4 .

Find the maximum speed at which a car can take turn round a curve of 30 cm radius on a level road if the coefficient of friction between the tyres and the road is 0.4. Take g = 10 ms^(-2) .