The Magic Chart Honors Physics Worksheet With Answers - Northern Highlands Page 6
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616. An object experiences an acceleration of -6.8 m/s
. As a result, it accelerates from 54 m/s to a complete
2
Homework
stop. How much distance did it travel during that acceleration?
v
= v
+ 2a x
v
=54
(0 m/s)
=(54 m/s)
+ 2(-
=214.41 m
f 2
i 2
2
2
Given
Formula
Set up
Solution
a= -6.8 m/s
i
6.8 m/s
)x
2
2
v
=0 m/s
x=? m
f
17. An object is dropped from a 32 m tall building. How fast will it be going when it strikes the ground?
v
= v
+ 2a x
v
=0 m/s
= 2(-9.8 m/s
)(32 m)
=25.04 m/s
f 2
i 2
2
Given
Formula
Set up
Solution
a= -9.8 m/s
i
2
v
=? m/s
x=32 m
f
18. An object is dropped from a building and strikes the ground with a speed of 31m/s. How tall is the
building?
v
= v
+ 2a x
v
=0 m/s
(31 m/s)
= 2(-9.8 m/s
)x
=49.03 m
f 2
i 2
2
2
Given
Formula
Set up
Solution
a= -9.8 m/s
i
2
v
=31 m/s
x=? m
f
19. A hopper jumps straight up to a height of 1.3 m. With what velocity did it leave the floor?
v
= v
+ 2a x
= v
+ 2(-9.8 m/s
v
=? m/s
=5.04 m/s
)(1.3 m)
f 2
i 2
i 2
Given
Formula
Set up
2
Solution
a= -9.8 m/s
i
2
v
=0 m/s
x=1.3 m
f
20. A hopper jumps straight up to a height of 0.45 m. With what velocity will it return to the table?
v
= v
+ 2a x
= v
+ 2(-9.8 m/s
v
=? m/s
)(0.45 m)
=2.96 m/s
f 2
i 2
i 2
Given
Formula
Set up
2
Solution
a= -9.8 m/s
i
2
v
=0 m/s
x=0.45 m
f
6 |
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