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On a lonely highway, with no other cars in sight, you
Chapter 4, Problem 71P(choose chapter or problem)
Problem 71P
On a lonely highway, with no other cars in sight, you decide to measure the angular acceleration of your engine’s crankshaft while braking gently. Having excellent memory, you are able to read the tachometer every 1.0 s and remember seven values long enough to later write them down. The table shows your data:
Time (s) |
rpm |
0.0 |
3010 |
1.0 |
2810 |
2.0 |
2450 |
3.0 |
2250 |
4.0 |
1940 |
5.0 |
1810 |
6.0 |
1510 |
What is the magnitude of the crankshaft’s angular acceleration? Give your result in rad/s2.
Questions & Answers
QUESTION:
Problem 71P
On a lonely highway, with no other cars in sight, you decide to measure the angular acceleration of your engine’s crankshaft while braking gently. Having excellent memory, you are able to read the tachometer every 1.0 s and remember seven values long enough to later write them down. The table shows your data:
Time (s) |
rpm |
0.0 |
3010 |
1.0 |
2810 |
2.0 |
2450 |
3.0 |
2250 |
4.0 |
1940 |
5.0 |
1810 |
6.0 |
1510 |
What is the magnitude of the crankshaft’s angular acceleration? Give your result in rad/s2.
ANSWER:
Step 1 of 3
In this question, we need to find magnitude of crankshaft’s angular acceleration in terms of
Data given
Time (s) |
RPM |
0.0 |
3010 |
1.0 |
2810 |
2.0 |
2450 |
3.0 |
2250 |
4.0 |
1940 |
5.0 |
1810 |
6.0 |
1510 |