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Essay text:
Therefore, a velocity change is a change in acceleration by definition. Velocity is always tangent to the circle.
-We can connect centripetal force with ?F=ma.
Ex. 1) What is the instantaneous velocity?
?= 1.80 r= 20.0 m
Procedure: See lab book.
Data:
m r t Ave. speed=(2 r)/t
Fc Accepted
Trial 1 44 kg 8.4 m 62 s 8.5 m/s 380 N
Trial 2 44 kg 8.4 m 63 s 8.4 m/s 370 N
Trial 3 44 kg 8.4 m 60 s 8.8 m/s 410 N
m ? Fc Measured
Trial 1 44 kg 42 ? 390 N
Trial 2 44 kg 40 ? 360 N
Trial 3 44 kg 45 ? 430 N
% Error
Trial 1 3.0 %
Trial 2 3.0 %
Trial 3 5.0 %
Sample Calculations:
Conclusion: I was successful in proving that when centripetal force increases, so does the angle on an accelerometer...
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