Question
Hard
Solving time: 4 mins
A small piece of Styrofoam packing material is dropped from a height of above the ground. Until it reaches terminal speed, the magnitude of its acceleration is given by . After falling , the Styrofoam effectively reaches terminal speed and then takes more to reach the ground.
(a) What is the value of the constant ?
(b) What is the acceleration at ?
(c) What is the acceleration when the speed is ?
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Text solutionVerified
(a) The acceleration of the Styrofoam is given by
When and
The Styrofoam falls at constant speed in .
Thus,
Then
(b) At , and down
(c) When ,
down.
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Question Text | A small piece of Styrofoam packing material is dropped from a height of above the ground. Until it reaches terminal speed, the magnitude of its acceleration is given by . After falling , the Styrofoam effectively reaches terminal speed and then takes more to reach the ground. (a) What is the value of the constant ? (b) What is the acceleration at ? (c) What is the acceleration when the speed is ? |
Topic | Mechanical Properties of Fluids |
Subject | Physics |
Class | Class 11 |
Answer Type | Text solution:1 |
Upvotes | 58 |