IB MAI HL Functions Topic 2.2 Applications of Functions (id: badc1520e)

本题目来源于试卷: IB MAI HL Functions Topic 2.2 Applications of Functions，类别为 IB数学

[填空题]
The downward speed, V, in metres 9(,z xqeh2:l h g;hm*rmis8ws0vy8p1pehpr9 per second, gained btel7l 9 c6qe)ay a skydiver during a jump is modelled by the funace6t) 9elql7ction
V(t)=56−56$\times3$$^{-\frac{t}{4}}$,t≥0,​where t, in seconds, is the time for which the skydiver is free falling in the air.





1.Write down the downward speed of the skydiver at t=0.
The line L is the horizontal asymptote to the graph. V =   
2.Determine the equation of L.
The skydiver starts to feel no acceleration when he reaches the speed of 55 metres per second. y =   
3.Find the time it takes for the skydiver to reach this speed. Give your answer correct to the nearest second. t ≈   

参考答案:
空格1: 0±2%  空格2: 56±2%  空格3: 14.7±2% 


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