A car race on straight road|RECTILINEAR MOTION|JEEMAIN 2019

JEE MAIN 2019

09-01-19 S2

Question

In a car race on straight road, car A takes a time t less than car B at the finish and passes finishing point with a speed ‘v’ more than that of car B. Both the cars start from rest and travel with constant acceleration a1 and a2 respectively. Then ‘v’ is equal to

Select the correct option:

$\frac{a_1+a_2}{2} t$

$\frac{2 a_1 a_2}{a_1+a_2} t$

$\sqrt{2 \mathrm{a}_1 \mathrm{a}_2} \mathrm{t}$

$\sqrt{a_1 a_2} t$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution