http://puu.sh/a4I1d/4c9326da92.jpg 1. The mass of your hand, in kg, is: a.0.001

Question

http://puu.sh/a4I1d/4c9326da92.jpg

1. The mass of your hand, in kg, is:
a.0.001
b. 0.01
c. 0.1
d. 1.0
2. The speed of your pencil when
dropped 0.1 m is about, in m/sec:
a. 0.001
b. 0.01
c. 0.1
d. 1
3. The circumference of the earth, in m,
is about:
a.6.4x100
b. 3.9x103
c. 6.4x103
d. 6.4x106
4. How many seconds are in one day?
a. 105

b. 104

c. 103

d. 101

5. A typical automobile can brake at
about 0.7 g deceleration The tire static
friction coefficient is about:
a. 0.7

b. 7.0
c. 70
d. 700

6. A car going 30 mph goes around a
street corner of radius 20 m. What is the
sideways acceleration needed, in g?
a. 0.08
b. 0.8
c. 8
d. 80
7. Suppose you move outward on a
rotating merry-go-round, increasing your
radial position by a factor of two. By
what factor does your speed increase?
a. 1/2
b. 1
c. 2
d. 4
8. For you to get to walking speed from
rest in one second requires an
acceleration of about, in g:
a. 0.1
b. 1
c. 10
d. 100

Explanation / Answer

1.) d

2.) d

3.) d

4.) a

5.) a

6.) b

7.) c

8.) b

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