# physics

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Coasting due west on your bicycle at 7.9 , you encounter a sandy patch of road 7.0 across. When you leave the sandy patch your speed has been reduced by 2.0 to 5.9 .

1. Assuming the sand causes a constant acceleration, what was the bicycle's acceleration in the sandy patch? Give the magnitude.

2.How long did it take to cross the sandy patch?

3. Suppose you enter the sandy patch with a speed of only 5.4 . Is your final speed in this case 3.4 , more than 3.4 , or less than 3.4 ? Explain.

• physics -

1. 1.7
2. 1.2
3. <3.4

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