Question

Two cars C1 and C2 moving in the same direction on a straight road with velocity 12 metre per second and 10 metre per second respectively when the separation between the two cars was 200 metre C2 start accelerating to avoid collision what is the minimum acceleration of C2 so that they don't collide

Answer 1

minimum acceleration is200 metres

Answer 2

Answer:

Explanation:

Velocity of first car = c1 =  12m/s

Velocity of second car = c2 = 10m/s

Relative velocity of the car c1 with respect to c2 -

c1 - c2

= 12-10

= 2m/s

Thus, the car will appear to move with a speed of 2m/s for car c2.

Separation between the cars = 200m

Minimum acceleration to avoid collision - m/s²

Using the equation of collision -

v² = u² - 2aS.

0=2²- 2 × a × 200.

a = 0.01

0.01 m/s²