I'd appreciate some help with this physics problem:(adsbygoogle = window.adsbygoogle || []).push({});

A car is travelling 10 km/hr and crashes into a tree. The driver is thrown 1 m forward. What is his average deceleration?

Here's my work:

Velocity of driver: 10 km/hr = 10,000 m/hr = 250/9 m/s

Time: 1 m / 250/9 m/s = .036 s

So it took him .036 seconds to travel 1 m.

Acceleration = final velocity - initital velocity / time

0 - 250/9 m/s / .036 s = -771.6 m/s

So his average deceleration is 771 m/s ?

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# Homework Help: Deceleration of a Car Driver

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