Question

A car starting from rest and moving with uniform acceleration on a straight road travels for some time such that the path described by it in the last second and in the penultimate second of its motion are in the ratio 4 : 3 respectively calculate the total time travelled by the body

Answer 1

The total time travelled by the body is 6.02 x 1023.

If an object's speed (velocity) is increasing at a constant rate then we say it has uniform acceleration.

The rate of acceleration is constant.

If a car speeds up then slows down then speeds up it doesn't have uniform acceleration.

Answer 2

Let T be the total time. Initial body was at rest u=0.

Distance traveled in last second d=1/2(Vf+Vi)Xt.

A Car is starting from rest & moving with uniform acceleration on straight road travels for some time such that the path denoted by it in the last second and in the penultimate second of its motion are in the ratio of 4/4 respectively.

The total time travelled by the body is 3.5 sec.

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