- #1

prezmoneymike

- 17

- 0

(a) Determine the initial acceleration of the Viper from rest. (b) Determine the maximum speed (i.e. terminal velocity). (c) Calculate the distance and speed for t = 12.2 s. (d) Find time and distance for the car to reach 99% of its top speed.

So basically I found the answers for a and b they are as follows.

A)F=ma 12360N=1547kg(a) a=7.99N/kg

B)F=ma Fcar-Fdrag= 0 Fcar=Fdrag F=kv 12360N=164(v) v=75.37

So those two are checked and fine but c I am havin trouble still

c) F-Fd=ma F-kv=ma F-kv=m dv/dt

integral 1/m dt= integral dv/(f-k(v))

t/m= integral dv/(f-kv)

so I am stuck here. o and i think the integral limit is 0 and V. my teacher said to do

u substitution and make u=F-kv and du=-kdv

thereby making t/m= -1/k integral du/u with limit f and f-kv

i have no idea what to do next with the integration. Basically i need someone to help integrate it and solve for v. then with that equation i can solve for part d. also i have no idea how to calculate the distance. o i need this for tomorow morning so any quick help would be very helpful thanks.