Wednesday

March 4, 2015

March 4, 2015

Posted by **Anonymous** on Thursday, September 6, 2007 at 10:50pm.

Work (so far):

100 m x 1 km/1000 m x .621 mi/km =0.0621 mi

Answer (back of the book): -3.60 m/s^2

- physics -
**drwls**, Friday, September 7, 2007 at 1:25am60 mph = 88 ft/s = 26.82 m/s

To decelerate from 26.82 m/s to 0 in 100 m, the time of travel will be

(100 m)/(average speed) = 100/13.41= 7.46 s. The deceleration rate is 26.82 m/s/7.46 s = -3.59 m/s^2

Since there are only two significand figures ikn this problem, it should be rounded to -3.60 m/s^2.

**Answer this Question**

**Related Questions**

physics - A driver in a car traveling at a speed of 70 mi/h sees a deer 90 m ...

Physics - A driver in a car traveling at a speed of 56.1 mi/h sees a deer 103 m ...

physics - A driver in a car traveling at a speed of 55.3 mi/h sees a deer 108 m ...

Physics - A driver in a car traveling at a speed of 56.0 mi/h sees a deer 116 m ...

Physics - A driver in a car traveling at a speed of 56.0 mi/h sees a deer 116 m ...

physics - A driver in a car traveling at a speed of 59 mi/h sees a deer 104 m ...

Physics - A driver in a car traveling at a speed of 55.4 mi/h sees a deer 116 m ...

physics - A driver in a car traveling at a speed of 41.7 mi/h sees a deer 88 m ...

AP Physics - A driver in a car traveling at a speed of 62 mi/h sees a deer 112 ...

P - A driver in a car traveling at a speed of 56 mi/h sees a deer 91.2 m away on...