27. (II) A car traveling 85km/h strikes a tree. I zuo of the car compresses and the driver comes to rest after traveling 0.80 m .What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g=9.80m/s^2 3

Question

Answer 1

First, convert the initial velocity from km/h to m/s:

Using the kinematic equation:

Convert to "g's":

The average acceleration of the driver during the collision is approximately

.

Answer 2

To find the average acceleration, we use the kinematic equation

. Here,

is the final velocity (0 m/s),

is the initial velocity (converted to m/s),

is the acceleration, and

is the distance (0.80 m). We then convert the acceleration to "g's".

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