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Week 16-17 Application of DE of Order One Name: Section: 9. A ball mass of 2kg is dropped from rest in a viscous fluid, the resistance of which is 0.001v Newton where v is the instantaneous velocity in m/s. What is the velocity and distance travelled by the ball after 4 seconds? 10. A 70kg object falls from rest, and its terminal velocity is -20m/s. a. Find its velocity after 2 seconds. b. How long does it take to reach 80% of its terminal velocity?

Week 16-17 Application of DE of Order One Name: Section: 9. A ball mass of 2kg is dropped from rest in a viscous fluid, the resistance of which is 0.001v Newton where v is the instantaneous velocity in m/s. What is the velocity and distance travelled by the ball after 4 seconds? 10. A 70kg object falls from rest, and its terminal velocity is -20m/s. a. Find its velocity after 2 seconds. b. How long does it take to reach 80% of its terminal velocity?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Week 16-17 Application of DE of Order One Name: Section: 9. A ball mass of 2kg is dropped from rest in a viscous fluid, the resistance of which is 0.001v Newton where v is the instantaneous velocity in m/s. What is the velocity and distance travelled by the ball after 4 seconds? 10. A 70kg object falls from rest, and its terminal velocity is -20m/s. a. Find its velocity after 2 seconds. b. How long does it take to reach 80% of its terminal velocity?
Transcribed Image Text:Week 16-17 Application of DE of Order One Name: Section: 9. A ball mass of 2kg is dropped from rest in a viscous fluid, the resistance of which is 0.001v Newton where v is the instantaneous velocity in m/s. What is the velocity and distance travelled by the ball after 4 seconds? 10. A 70kg object falls from rest, and its terminal velocity is -20m/s. a. Find its velocity after 2 seconds. b. How long does it take to reach 80% of its terminal velocity?
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