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Original Question
An object is dropped from rest. What is its instantaneous speed when it has been in motion for 5 s? The acceleration of gravity...Asked by Ethan
An object is dropped from rest.
What is its instantaneous speed when it has
been in motion for 7 s? The acceleration of
gravity is 9.8 m/s
2
.
Answer in units of m/s
What is its instantaneous speed when it has
been in motion for 7 s? The acceleration of
gravity is 9.8 m/s
2
.
Answer in units of m/s
Answers
Answered by
black_widow
Consider only vertical component (because the object does not move horizontally)
Use formula v=u+at
v=0+9.8(7)
v=68.6m/s
Use formula v=u+at
v=0+9.8(7)
v=68.6m/s
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