Question

the speed of moving car is tripled the distance travelled by it before coming to rest as compared to earlier will be​

Answer 1

Answer:

the speed of moving car is tripled the distance travelled by it before coming to rest as compared to earlier will be​

Explanation:

Relation between velocity and distance is

V  

2

=U  

2

+2aS

If the final velocity Zero then the relation is become

U=  

2aS

​  

 

Now if we want to multiply the velocity 3 time then we have to multiply the distance 9 time to make the equation balanced.

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Answer 2

The distance traveled will be 9 times than earlier if speed is tripled.

Step-by-step explanation:

From the third equation of motion, we know that:

v² = u² + 2as

where u and v are the initial and final velocity, a is the acceleration and s is the distance.

If final velocity v = 0, then the equation will become:

u = √2as

​Now given that the speed has tripled, then we find that the distance should be 9 times in order to balance the equation.

 3u = √(2as*9)

Option C is the answer.

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