The speed of a falling skydiver is vt 58let3 in metres per
The speed of a falling skydiver is v(t) = 58(l-e^-t/3) in metres per second, where t is the number of seconds since leaving the plane. Then the terminal velocity is L = lim v(t) = The difference |v(t) - L| can be simplified to takes (to the nearest second) for the skydiver 1 So the time it to get within 1/100 metres per second of the terminal velocity is seconds to get within 1/10000 metres per second of the terminal velocity is seconds
Solution
v(t)=58(1-e-t/3)
limt-> v(t)
=limt-> 58(1-e-t/3)
=58(1-0)
=58
|58(1-e-t/3)- 58|<1/100
|58-58e-t/3- 58|<1/100
|58e-t/3|<1/100
|1/et/3|<1/5800
|et/3|>5800
|t/3|>ln(5800)
|t|>3ln5800
|t|>26
to go with in 26 sec
|58(1-e-t/3)- 58|<1/10000
|58-58e-t/3- 58|<1/10000
|58e-t/3|<1/10000
|1/et/3|<1/580000
|et/3|>580000
|t/3|>ln(580000)
|t|>3ln580000
|t|>39.8
to go with in 39.8 sec
