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Question

Why do cars have treaded tyres?

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

To increase friction and grip on the road

Car tyres are treaded to increase friction and grip on the road, especially under wet or slippery conditions. The presence of tread patterns helps in channeling water away from the contact surface between the tyre and the road. This reduces the risk of hydroplaning, where the tyres lose contact with the road due to a layer of water. Therefore, by enhancing the frictional force, treaded tyres ensure better control and stability of the vehicle, contributing significantly to road safety. Hence, the correct choice is: To increase friction and grip on the road.

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Important Questions from Motion

  1. The rate of change in the velocity of an object per unit time is referred as ________.

  2. Which of the following is a correct equation of motion?

  3. The acceleration of an object is said to be _______ when an object travels in a straight line and its velocity increases or decreases by an equal amounts in equal intervals of time.          

  4. What is the friction force employed between the two surfaces interacted in relative speed?

  5. The rate of change of momentum of an object is

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