Puppy whining in cage?

[woodyflier]

My puppy cries and tries to get out of his cage when we put him in there. My mom kinda hits the side of the cage and says NO and the puppy settles down and goes to sleep. I'm not sure if we're scaring the puppy or not, is this acceptable?
The puppy is 2 and a half months old.

 

[Loser]

Its probably had bad memories of being in a cage