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A javelin thrower standing at rest holds the center of the
Chapter 4, Problem 51P(choose chapter or problem)
A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of \(70 \mathrm{~cm}\) as she throws. She releases the javelin \(2.0 \mathrm{~m}\) above the ground traveling at an angle of \(30^{\circ}\) above the horizontal. Toprated javelin throwers do throw at about a \(30^{\circ}\) angle, not the 45 you might have expected, because the biomechanics of the arm allow them to throw the javelin much faster at \(30^{\circ}\) than they would be able to at \(45^{\circ}\). In this throw, the javelin hits the ground \(62 \mathrm{~m}\) away. What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration.
Equation Transcription:
Text Transcription:
70 cm
2.0 m
30^circ
30^circ
45^circ
62 m
Questions & Answers
QUESTION:
A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of \(70 \mathrm{~cm}\) as she throws. She releases the javelin \(2.0 \mathrm{~m}\) above the ground traveling at an angle of \(30^{\circ}\) above the horizontal. Toprated javelin throwers do throw at about a \(30^{\circ}\) angle, not the 45 you might have expected, because the biomechanics of the arm allow them to throw the javelin much faster at \(30^{\circ}\) than they would be able to at \(45^{\circ}\). In this throw, the javelin hits the ground \(62 \mathrm{~m}\) away. What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration.
Equation Transcription:
Text Transcription:
70 cm
2.0 m
30^circ
30^circ
45^circ
62 m
ANSWER:
Step 1 of 5
We are required to calculate the acceleration of the javelin during the throw