Let v (t) = t^2 - 2t be the velocity in t/sec t is time in seconds a) what is the initial velocity v(0) b) when does an object have a velocity of zero? c) what is the meaining of quantity v (3)? What are it'sunits?

Javion Henry

Javion Henry

Answered question

2022-07-25

Let v ( t ) = t 2 2 t be the velocity in t / sec t is time in seconds
a) what is the initial velocity v(0)
b) when does an object have a velocity of zero?
c) what is the meaining of quantity v (3)? What are it'sunits?

Answer & Explanation

Kyan Hamilton

Kyan Hamilton

Beginner2022-07-26Added 12 answers

A)
Simply plug in the value of 0 into the velocity function.
v ( 0 ) = 0 2 2 ( 0 ) = 0
B)
The object has velocity of 0 wherever your function =0
0 = t 2 2 t
0=t(t-2)
So this means that at t=0 the velocity is 0 and also at t=2 thevelocity is 0
Checking by plugging in these numbers shows that this answer iscorrect.
C)
For this problem simply plug in the value of t=3 into the equationgiven.
V ( 3 ) = 3 2 2 ( 3 ) = 6
So the answer to this portion is 6.
The units for velocity are given in m e t e r s s e c o n d or simply m s

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