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October 2, 2014

October 2, 2014

Posted by **Ariel** on Monday, July 12, 2010 at 2:22pm.

1.)A ball is rolling across the top of a billiard table and slowly rolls to a stop. How would Galileo explain the motion of the ball as it stopped?

a)The ball's natural state is at rest b)The ball stopped because it ceased to be pushed

=c)The ball stopped due to external forces such as friction

2.)The distance an object travels per unit of time

=a)Is its speed

b)Is its velocity

c)Is its acceleration

3.) A man leaves his house and begins walking in a straight line. After 2 hours he is ten miles from home. Calculate the man's average speed in terms of feet per second. (There are 3600 seconds in an hour and 5280 feet in a mile.)

a).14 feet per second

b)1.47 feet per second

=c)7.33 feet per second

d)380160000 feet per second

4.)A woman is walking at a rate of 4 miles per hour. Her pet hedgehog is walking at a rate of 5.82 feet per second. Who is traveling faster?

=a)The woman

b)The hedgehog

c)Neither, they are traveling at the same speed

5.)The distance and direction an object travels per unit of time

a)Is its speed

=b)Is its velocity

c)Is its acceleration

6.)A car traveling at 8m/s due north speeds up to 10m/s in the same direction. If it takes the car 5 seconds to change its velocity what is the car's acceleration?

a).2m/s2

=b).4m/s2

c).8m/s2

d)2m/s2

- Physic Check -
**bobpursley**, Monday, July 12, 2010 at 6:48pmall correct, go to the head of the class.

- Physic Check -
**Ariel**, Tuesday, July 13, 2010 at 12:55pmThanks:)

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