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a model rocket is launched straight upward. It’s altitude y as a function is given by y=bt-ct^2, where b= 81 m/s, c=4.9 m/s ^2, t is the time in seconds, and y is in meters



Exercise 2.21 Constants 1 Periodic Table Part A A modei rocket is launched straight upward Its alt tude y as a unction of time is given by ybt -ct, where b81 m/s Use difterentiation to find a general expression for the rockets velocity as a function of time 49 m/t is the time in seconds, and y is in meters e(t)- Request Answer Part B When is the velocity er Express yow answer using two significent figures Request Answe Provide Feedbac MacBook Air 5 s lock trol option command
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Answer #1

Concept used:- here we differentiate the expression for position to find the expression for velocity. And we equate the expression for velocity to zero to find the time,

if you we valuo of put whicheer is required in the answeY 3 2C***************************************************************************************************
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