a car is moving at a speed of 100 metre per second driver accelerate the current increases the speed from hundred metre per second to 300 metre per second in 10 seconds find the acceleration of the car describe with this with with the diagram of Physics
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Answer:
a=(v-u)/time
Explanation:
300-100
=200/10
20meters per second square
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Answer ⇒ Option (c). The minimum stopping distance is same for both the cars.
Explanation ⇒ Let us take an help of the mathematical expression to derive our result.
We know that when car will be stopped then the Force of Friction acting will be the Limiting Friction.
∴ f = μmg
Now, ma = μmg
⇒ a = μg
Since, the acceleration is independent of the mass thus the minimum stopping distance will also be independent of the mass as they have the same initial speed. [Taking help of the Second Equation of motion.]
∴ Option (c). is correct answer.
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