Home
Class 11
PHYSICS
A car running with a velocity 72 kmph on...

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

A

0.33

B

4.5

C

0.67

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
C
`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 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 car is travelling at 36 kmph on a road . The maximum turning radius of the car is 20 m ans g=10m//s^(2) .Then the coefficient of friction between its tyres and the road is

Find the maximum velocity for skidding for a car moved on a circular track of radius 100 m . The coefficient of friction between the road and tyre is 0.2

Brakes are applied to car moving with disengaged engine, bringing it to a halt after 2s Its velocity at the momnet when the breaks are applied if the coefficient of friction between the road and the tyres is 0.4 is .

What is the minimum stopping distance for a vehicle of mass m moving with speed v along a level road. If the coefficient of friction between the tyres and the road is mu .

What is the minimum stopping distance for a vehicle of mass m moving with speed v along a level road. If the coefficient of friction between the tyres and the road is mu

When a car of mass 1000kg is moving with a veocity of 20ms^(-1) on a rough horizontal road its engine is switched off. Hwo for does the car move before it comes to rest if the coefficient of kintic friction between the road and tyres of the car is 0.75 ? .

A car round on unbanked curve of radius 92 m without skidding at a speed of 26 ms ^(-1) . The smallest possible coefficient of static friction between the tyres and the road is