The kinetic energy of an object with a mass of #2 kg# constantly changes from #32 J# to #136 J# over #4 s#. What is the impulse on the object at #1 s#?
1 Answer
I am facing this type of question but no one has answered it yet.
Probably the question is not clear enough as impulse at a particular time is wanted here , which is not possible by definition
Now I place here a probable solution considering that the impulse at a particular time (say Tsec) means
Either (1) It is the change in momentum during
Or (2) It is the momentum of the body at
In our question the KE of an object of mass
So slope
If the velocity of the object is v at
we can write
So the momentum at
So the momentum at
Hence impulse during 1s =
OR otherwise impulse at 1s is momentum at is