Question

Que 1.23. What are causal systems ? Check the causality of the
following system :
i. y (n) = x (n)
ii. y(t) = x (1) cos (t + 1)
where x is the input and y is the output.
AKTU 2013-14, Marks 05​

Answer 1

Answer:

A body starts from rest on a long inclined plane of slope 45 . The coefficient of friction between the body and the plane varies as μ=0.3x, where x is the distance travelled down the plane. The body will have maximum speed (for g=10m/s when x=: