Question

what is intantaneous​

Answer 1

Definition of instantaneous

1 : done, occurring, or acting without any perceptible duration of time

death was instantaneous

2 : done without any delay being purposely introduced

took instantaneous corrective action

3 : occurring or present at a particular instant

instantaneous velocity

hope it's helps you

Answer 2

Instantaneous referes to something at that instant

For example when instantaneous velocity is asked we have to say velocity at that instant (in that fraction of second)

.We shouldn't calculate the velocity in the time travelling instead.