The function f,defined by f(t)=6+cos(t/40)+3sin(7t/40),is used to model the velocity of the plane,in miles per minute,for 0≤t≤40.According to thhis model,waht is the acceleration of the plane at t=23?What is the average velocity of the plane,in m

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/07 20:54:35
The function f,defined by f(t)=6+cos(t/40)+3sin(7t/40),is used to model the velocity of the plane,in miles per minute,for 0≤t≤40.According to thhis model,waht is the acceleration of the plane at t=23?What is the average velocity of the plane,in m

The function f,defined by f(t)=6+cos(t/40)+3sin(7t/40),is used to model the velocity of the plane,in miles per minute,for 0≤t≤40.According to thhis model,waht is the acceleration of the plane at t=23?What is the average velocity of the plane,in m
The function f,defined by f(t)=6+cos(t/40)+3sin(7t/40),is used to model the velocity of the plane,in miles per minute,for 0≤t≤40.According to thhis model,waht is the acceleration of the plane at t=23?What is the average velocity of the plane,in miles per minute,over the time interval 0≤t≤40?

The function f,defined by f(t)=6+cos(t/40)+3sin(7t/40),is used to model the velocity of the plane,in miles per minute,for 0≤t≤40.According to thhis model,waht is the acceleration of the plane at t=23?What is the average velocity of the plane,in m
据定义,加速度就是速度对时间的微分,故加速度函数为
a(t)=f'(t)=-1/40*sin(t/40)+21/40*cos(7t/40),把t=23带入即得23分时的加速度
a=-0.347miles per minute^2
路程是速度对时间的积分,因此平均速度为
v1=1/40*∫(0→40)f(t)dt=(6t+40*sin(t/40)-120/7*cos(7t/40))|(40→0)=6.97miles per minute

several values of the function f are shown. the function g is defined by g(x)=f(3x+1).what is the value of g(2) the scattering function The function define empty! the aldols' keto-function the joint likelihood function If f(x)=log(x).write out the domain and range of the function. What are the Domain and Range of the function f(x)=-2log(x)-4? find the inverse of the function:f(x)= (4x-1)/(2x+3) What is the slope of the line whose function f satisfies f(-2)=1 and f(5)=-10? what is the image of the function f:R->R,f|x|+x?use the interval notation what is the value of the discriminant for the function f(x)=8x^2+13x+7? A portion of the graph of the function f is shown in the xy-plane above. What is the y-intercept ofthe graph of the function g defined by g(x)=f(x)+1? 关于一题SAT数学题If f(x)=x^3+1 and of f^(-1)（x) is the inverse function of f,what is f^(-1)(4)? 答案是1.44 求详细解答! 谢谢谢!inverse function 是什么? Find a formula for the inverse of the function f(x) = ln (2 x+9).3Q several values of the function f are shown above.the function g is defined by g(x)=f(3x+1)what is the value of g(2)? function Let f be the function with derivative given by f'(x)=sin(x*x+1).How many relative extrama dose f have on the interval 2 f(x)=3x3次方+22x-16这个题怎么算find the zeros of function algebraically