Concept explainers
(a)
At what horizontal distance from seed pod does the seed hit the ground?
(a)
Answer to Problem 64P
The horizontal distance from seed pod does the seed hit the ground is
Explanation of Solution
Write the equation to find the displacement of the seed.
Here,
Rewrite equation (I) to find
Write the equation to find the horizontal displacement.
Here,
Conclusion
Substitute
Solve above equation to get
Substitute
Therefore, The horizontal distance from seed pod does the seed hit the ground is
(b)
At what horizontal distance from seed pod does the seed hit the ground if the seed is launched at
(b)
Answer to Problem 64P
The horizontal distance from seed pod does the seed hit the ground is
Explanation of Solution
Write the equation to find the final velocity of seed.
Here,
Write the equation to find the difference in final and initial velocities.
Here,
Rewrite equation (II) to get
Write the equation to find the horizontal displacement.
Here,
Conclusion:
Substitute
Substitute
Substitute
Therefore, The horizontal distance from seed pod does the seed hit the ground is
(c)
Whether the air resistance is negligible if the horizontal distance measured is
(c)
Answer to Problem 64P
The air resistance is not negligible.
Explanation of Solution
The measured distance of
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