Calculating velocity at position C: At position A, the car has gravitational potential energy and kinetic energy. The gravitational potential energy at position A is given by: PEA = mx g x hA where m is the mass of the car and passenger (1000 kg), g is the acceleration due to gravity (9.8), and he is the height of position A from the ground (18 m). Substituting the values, we get: PEA = 1,000kg x 9.8 × 18m = 176, 400J At position A, the car also has kinetic energy given by: KEA = 0.5 x m X v² where v_A is the velocity at position A (2 m/s). Substituting the values, we get: KEA = 0.5 × 1,000kg × (2)² = 2,000J The total mechanical energy at position A is the sum of the gravitational potential energy and kinetic energy: EA = PEA + KEA = 176, 400J + 2,000J = 178, 400J At position C, the car has gravitational potential energy and kinetic energy. The gravitational potential energy at position C is given by: PEc = mx g x hc where h_C is the height of position C from the ground (15 m). Substituting the values, we get: PEc = 1,000kg x 9.8 × 15m= 147,000J
Calculating velocity at position C: At position A, the car has gravitational potential energy and kinetic energy. The gravitational potential energy at position A is given by: PEA = mx g x hA where m is the mass of the car and passenger (1000 kg), g is the acceleration due to gravity (9.8), and he is the height of position A from the ground (18 m). Substituting the values, we get: PEA = 1,000kg x 9.8 × 18m = 176, 400J At position A, the car also has kinetic energy given by: KEA = 0.5 x m X v² where v_A is the velocity at position A (2 m/s). Substituting the values, we get: KEA = 0.5 × 1,000kg × (2)² = 2,000J The total mechanical energy at position A is the sum of the gravitational potential energy and kinetic energy: EA = PEA + KEA = 176, 400J + 2,000J = 178, 400J At position C, the car has gravitational potential energy and kinetic energy. The gravitational potential energy at position C is given by: PEc = mx g x hc where h_C is the height of position C from the ground (15 m). Substituting the values, we get: PEc = 1,000kg x 9.8 × 15m= 147,000J
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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what answer do you get if you replace 15metres for 13 metres for position c
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