Home
Class 9
PHYSICS
a driver of a car travelling at 52 km//h...

a driver of a car travelling at `52 km//h` applies the brakes and acceleration uniformly in the opposite direction. The car stops in `5 s`. Another driver going at `34 km//h` in another car applies his brakes slowly and stops in `10 s`. On the same graph paper, plot the speed versus time graphs for the two cars. Which of the two cars travelled farther after the brakes were applied ?

Text Solution

AI Generated Solution

To solve the problem step by step, we will follow these instructions: ### Step 1: Convert the speeds from km/h to m/s - For Car A: \[ 52 \, \text{km/h} = \frac{52 \times 1000}{3600} = \frac{52000}{3600} \approx 14.44 \, \text{m/s} \] - For Car B: ...
Promotional Banner

Topper's Solved these Questions

  • MOTION

    PRADEEP|Exercise NCERT short answer question|7 Videos
  • MOTION

    PRADEEP|Exercise Long answer question|12 Videos
  • MOTION

    PRADEEP|Exercise NCERT queations|20 Videos
  • GRAVITATION

    PRADEEP|Exercise Model Test paper (1)|36 Videos
  • SOUND

    PRADEEP|Exercise Model Test (sec - B)|12 Videos

Similar Questions

Explore conceptually related problems

A driver of a car A travelling at 54 km//h applies the brakes and stops the car in 4 seconds. Another driver of car B travelling at 36 km//h applies the brakes and stops the car in 6 seconds. Plot speed versus time graphs for the two car. which of the cars travelled farther before stopping ?

A driver travelling at 90 kph applied the brakes for 5 s. If the braking acceleration was 2 m//s^(2) , what was her final speed ?

When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then retardation will be :

A car travelling at 36 km//h speeds upto 72 km//h in 5 seconds. What is its acceleration ? If the same car stops in 20 seconds , what is the acceleration?

The brakes applied to a car produce an acceleration of 6 m//s^(2) in the opposite direction to the motion . If the car takes 2 s to stop after the application of brakes , calculate the distance it travels during this time.

When the driver of a fast moving car suddenly applies brakes, the passengers in the car

Is it possible that the brakes of a car are so perfect that the car stops instantaneously ?

A cylist travelling at 10m/s applies brakes and stops in 25m m. The graph shows the magnitude of the braking force versus the distance travelled. What is the total mass of bike and cyelist?