The Wacky World of Tex Avery

Power Mom is a one time character from the segment cartoon Power Pooch in the show, The Wacky World of Tex Avery.

She's the mother of the super-powered baby brat who got Power pooch's power shoe. She is a blonde attractive young woman. After biting the shoe she becomes muscular and heroic and has a Letter M on her chest and a cape. After her baby goes on a rampage, She hits Pooch which causes the shoe to pop in her mouth and she gains Superpowers. She then beats up Pooch.

Power Pooch: That's Shoe Biz!
Season 1, Episode 40A

Aside from her Physique, Super Mom most likely the same powers Pooch has when he bites the shoe, Which would include super Strength, Flight and fighting ability.

Power Mom:"How DARE You spit this nasty sneaker at me!"