1.) Jason Renie set a world record of 77.0 m for motorcycle jump. Assume that he left the take-off ramp at 12.0° to the horizontal and that the take- off and landing heights are the same. Determine his take-off speed (in m/s).

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Chapter3: Two-dimensional Kinematics
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Problem 7PE: (a) Repeat the problem two problems prior, but for the second leg you walk 20.0 m in a direction...
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1.) Jason Renie set a world record of 77.0 m for motorcycle jump. Assume
that he left the take-off ramp at 12.0° to the horizontal and that the take-
off and landing heights are the same. Determine his take-off speed (in
m/s).
2.) A model of a helicopter rotor has four blades, each 3.40 m long from the
central shaft to the blade tip. The model is rotated in a wind tunnel at
550 rev/min. What is the radial acceleration (in m/s²) of the blade tip?
3.) A tourist in Cebu dives off a cliff with a running horizontal leap. What
must her minimum horizontal speed (in m/s) be just as she leaves the cliff
so that she will miss the ledge at the bottom, which is 1.75 m wide and
9.00m below the top of the cliff?
4.) In a test of a "g-suit", a volunteer is rotated in a horizontal circle of radius
7.0 m. What must the period (in s) of rotation be so that the centripetal
acceleration has a magnitude of 3.0g? Note: Use 9.8 m/s² for the value of
g.
5.) A pool ball leaves a 0.60-meter-high table with an initial horizontal
velocity of 2.4 m/s. Calculate the time (in seconds) required for the pool
ball to fall to the ground.
6.) Two crickets, Chookity and Cheekity, jumped from the top of a platform.
Chookity just drops and reaches the ground in 3.50 s, while Cheekity just
jumps horizontally with an initial speed of 95.0 cm/s. How far from the
base of the platform (in cm) will Cheekity hit the ground?
Transcribed Image Text:1.) Jason Renie set a world record of 77.0 m for motorcycle jump. Assume that he left the take-off ramp at 12.0° to the horizontal and that the take- off and landing heights are the same. Determine his take-off speed (in m/s). 2.) A model of a helicopter rotor has four blades, each 3.40 m long from the central shaft to the blade tip. The model is rotated in a wind tunnel at 550 rev/min. What is the radial acceleration (in m/s²) of the blade tip? 3.) A tourist in Cebu dives off a cliff with a running horizontal leap. What must her minimum horizontal speed (in m/s) be just as she leaves the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00m below the top of the cliff? 4.) In a test of a "g-suit", a volunteer is rotated in a horizontal circle of radius 7.0 m. What must the period (in s) of rotation be so that the centripetal acceleration has a magnitude of 3.0g? Note: Use 9.8 m/s² for the value of g. 5.) A pool ball leaves a 0.60-meter-high table with an initial horizontal velocity of 2.4 m/s. Calculate the time (in seconds) required for the pool ball to fall to the ground. 6.) Two crickets, Chookity and Cheekity, jumped from the top of a platform. Chookity just drops and reaches the ground in 3.50 s, while Cheekity just jumps horizontally with an initial speed of 95.0 cm/s. How far from the base of the platform (in cm) will Cheekity hit the ground?
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