The Magic Chart Honors Physics Worksheet With Answers - Northern Highlands Page 4
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66. An object is shot upwards, from the ground, with an initial velocity of 40 m/s. How high will it be after
2.0s?
x = v
t + 1/2 a t
v
=40 m/s
=(40 m/s)
(2 s)+1/2(-9.8
=60.4 m
2
Given
Formula
2
Set up
Solution
i
t=2 s
i
m/s
)(2 s)
2
2
a= -9.8 m/s
2
x=?
7. An object is dropped from a 42 m tall building. How long does it take to reach the ground?
x = v
t + 1/2 a t
v
=0 m/s
42 m = ½ (-9.8 m/s
)t
=2.9 s
2
2
Given
Formula
Set up
Solution
i
a= -9.8 m/s
i
2
t=?
x=42 m
8. An object is moving with an initial velocity of 23 m/s. It is then subject to a constant acceleration of 3.5
Homework
m/s
for 12 s. How far will it have traveled during the time of its acceleration?
2
x = v
t + 1/2 a t
v
=23 m/s
=(23 m/s)
(12 s)+1/2(3.5
=528 m
2
Given
Formula
2
Set up
Solution
i
t=12 s
i
m/s
)(2 s)
2
2
a= 3.5 m/s
2
x=?
9. An object is at rest when it undergoes a constant acceleration of 13 m/s2 for 5.0 seconds. How far will it
have traveled during this time?
x = v
t + 1/2 a t
v
=0 m/s
=1/2(13m/s
)(5 s)
=162.5 m
2
2
2
Given
Formula
Set up
Solution
i
i
t=5 s
a= 13 m/s
2
x=?
10. An object is dropped from the top of a building and strikes the ground 2.0s later. How tall is the building?
x = v
t + 1/2 a t
v
=0 m/s
= ½ (-9.8 m/s
)(2 s)
=19.6 m
2
2
2
Given
Formula
Set up
Solution
i
a= -9.8 m/s
i
2
t=2 s
x=?
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