A rock thrown downward with an unknown initial velocity from a height of 1000 feet reaches the ground in 5seconds. Find the velocity of the rock when it hits the ground.O a. -180.25 ft/secO b. -214.5 ft/secOc. -145 ft/secO d. -280 ft/sec

Answered: height of 1000 feet reaches the gro

Math

Calculus

height of 1000 feet reaches the gro

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter10: Quadratic Equations

Section10.4: Solve Applications Modeled By Quadratic Equations

Problem 10.84TI: A man throws a ball into the air with a velocity of 96 ft/sec. Use the formula h=16t2+v0t to...

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Question

A rock thrown downward with an unknown initial velocity from a height of 1000 feet reaches the ground in 5
seconds. Find the velocity of the rock when it hits the ground.
O a. -180.25 ft/sec
O b. -214.5 ft/sec
Oc. -145 ft/sec
O d. -280 ft/sec

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