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HW 2 – Report

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HW 2 – Report

General

Total number of students 24

Number of submitted HW 23

Number of not submitted HW 1

Number of problems 7+1

Average grade (without bonus for undergrads) 92.59 Standard deviation of grades 10.45 Including bonus for undergraduate students

Average grade 100.23

Standard deviation of grades 12.83

Individual problem breakdown

Problem P1.47 P1.67 P1.74 P1.80 P2.48 P2.79 P2.83 C1.11 Average grade 9.43 9.59 9.70 9.39 9.20 9.11 8.33 9.47 Standard deviation of

grades 0.96 0.81 0.54 1.58 2.16 2.19 2.48 1.23

Grade distribution

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Grade history

Submission history

Comparison with last year

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Comments

• Some students did not follow the format.

• Few students did not solve P2.79 by evaluating the y position of the center of pressure.

• Few students did not calculate correctly horizontal and vertical forces acting on the surface and did not apply correctly the balance of moments around the hinge.

• Some students made mistakes in the calculations of P2.48 and P2.79.

• 60% of undergraduate students solved the comprehensive problem C1.11;

almost all who attempted could solve the problem correctly.

Références

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