A boat of mass m, traveling with v of Vo at
t=0. A power is shut off assuming water
resistance is proportioal to Vn^ and V is
instantaneous velocity find V as a function
of the distance travelled
4kg ball falls from rest at time t =0 in a
medium offering a resistance in kg
numerically equal to twice its instantaneous
velocity in m/s.
find;
(a) the velocity and distance travelled at any
time t>0
(b) the limiting velocity
P is apolynomial from C_n [x] having n roots
(x_i )_(1≤i≤n ) and x_i # x_j for i#j
1) prove that Σ_(i=1) ^n (1/(p^′ (x_i ))) =0
2) find Σ_(i=1) ^n (x_i ^k /(p^′ (x_i ))) with k∈[[0,n−1]] .
let give F(x) = (1/(x^2 +1)) prove that ∃ P_n ∈ Z_n [x] /
F^((n)) (x)= ((P_n (x))/((1+x^2 )^n )) find a relation of recurence between
the P_n .prove that all roots of P_n are reals and smples.