The velocity of a parachutist during free fall is f (t) = 60(1 - e^-0.17t) meters per second. Answer the following questions by reading the graph in Fig. 2. (Recall that acceleration is the derivative of velocity.)

(a) What is the velocity when t = 8 seconds?

(b) What is the acceleration when t = 0?

(c) When is the parachutist’s velocity 30 m/sec?

(d) When is the acceleration 5 m/sec²?

Transcribed Image Text:

60 50 40 30 20 10 y Figure 2 y = f(t) y = f'(t) 10