Physics
posted by Angelica .
A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.1 m/s2. The driver then applies the brakes, causing a uniform acceleration of 2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following. 12.6 m/s at braking period.
How far has it gone?
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