A particle moving back and forth along a straight line has position function given byx(t)=sin((t2)) x(t)=sin((t2))witht tin
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Question:
A particle moving back and forth along a straight line has position function given byx(t)=sin((t2))
x(t)=sin((t2))witht
tin sec. Its instantaneous velocityv(t)
v(t)att=2
t=2is given by the limit of the difference quotient:
v(2)=lim
h0
x(2+h)x(2)
h
.
v(2)=limh0x(2+h)x(2)h.
(a) Estimate its instantaneous velocityv(2)
v(2)att=2
t=2sec using a table of values (up to two decimal places).
(b) Using part (a), can you guess what the value of the limitlim
z0
sin(z)
z
limz0sin(z)zis? Explain your reasoning.
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