Question

A car moving at a speed of 1.2 m/s undergoes a uniform de-acceleration of −0.4 m/s^{2} because of a red light. How far has the car moved 4 seconds after being applied the de-accelaration?

Step 1

The distance travelled by the car during reaction time is,

Substitute the values,

Step 2

According to the kinematics equation,

Substitute the values,

Step 3

The total distance travelled by the car after...

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