A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used to determine her displacement as a function of time: x = 0.25t3 + t2 + 2t, where x and t are expressed in feet and seconds, respectively. x is measured along the surface of the hill. Determine the position, velocity, and acceleration of the boarder when t = 7.5 seconds. The position, velocity, and acceleration of the boarder are ____ft, ____ft/s, and ____ft/s2, respectively when t = 7.5 seconds. A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used todetermine her displacement as a function of time: x= 0.25 + 2+ 2t, where x and tare expressed in feet and seconds, respectively. xis measured along the surface of the hill. Determine the position, velocity, and acceleration of the boarder when t= 7.5 seconds.The position, velocity, and acceleration of the boarder are|| ft,| ft/s, and[ft/s2, respectively when t= 7.5seconds.

Given: x = 0.25 t3 + t2 +2tt in sec and x in feet.

Answered: A snowboarder starts from rest at the…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 79P: Between t=0 and t=t0 , a rocket moves straight upward with an acceleration given by a(t)=ABt1/2 ,...

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A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the slope, GPS coordinates are used to determine her displacement as a function of time: x = 0.25t³ + t² + 2t, where x and t are expressed in feet and seconds, respectively. x is measured along the surface of the hill. Determine the position, velocity, and acceleration of the boarder when t = 7.5 seconds.

The position, velocity, and acceleration of the boarder are ____ft, ____ft/s, and ____ft/s², respectively when t = 7.5 seconds.

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