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IP One of the most popular events at Highland games is the
Chapter 4, Problem 56P(choose chapter or problem)
IP One of the most popular events at Highland games is the hay toss, where competitors use a pitchfork to throw a bale of hay over a raised bar. Suppose the initial velocity of a bale of hay is \(\mathrm {\vec{v}=(1.12\ m/s)\hat{x}+(8.85\ m/s)\hat{y}}\). (a) After what minimum time is its speed equal to (b) How long after the hay is tossed is it moving in a direction that is \(45.0^\circ\) below the horizontal? (c) If the bale of hay is tossed with the same initial speed, only this time straight upward, will its time in the air increase, decrease, or stay the same? Explain.
Equation Transcription:
Text Transcription:
vec{v}=(1.12 m/s)hat{x}+(8.85 m/s)hat{y}
45.0^o
Questions & Answers
QUESTION:
IP One of the most popular events at Highland games is the hay toss, where competitors use a pitchfork to throw a bale of hay over a raised bar. Suppose the initial velocity of a bale of hay is \(\mathrm {\vec{v}=(1.12\ m/s)\hat{x}+(8.85\ m/s)\hat{y}}\). (a) After what minimum time is its speed equal to (b) How long after the hay is tossed is it moving in a direction that is \(45.0^\circ\) below the horizontal? (c) If the bale of hay is tossed with the same initial speed, only this time straight upward, will its time in the air increase, decrease, or stay the same? Explain.
Equation Transcription:
Text Transcription:
vec{v}=(1.12 m/s)hat{x}+(8.85 m/s)hat{y}
45.0^o
ANSWER:
Step 1 of 3
Part a
We are required to calculate the time when the speed becomes equal to 5.00 m/s.
The given velocity vector is (1.12 m/s)
+ (8.85 m/s)
The magnitude of velocity is m/s
m/s
The change in speed m/s
m/s
m/s
Time taken
s
s
The time required is 0.40 s.