Question

a girl of mass 40 kg jumps with a horizontal velocity of 5m/s into a stationary cart with frictionless wheels.the mass of cart is 10 kg.what is their common velocity as the cart starts moving?

Answer 1

Answer:

Hey ☺️✌️

Explanation:

✏️Given :   Mgirl=40 kg           ugirl=5 m/s        Mcart=3 kg

Initial velocity of cart  ucart=0

Let the final velocity of cart be  V.

Applying conservation of linear momentum :    Pi=Pf

Or    Mgirlugirl+Mcartucart=(Mgirl+Mcart)V

Or    40×5+3×0=(40+3)V

⟹ V=43200 m/s

✒️ Hope it helps ✌️☺️♥️...

Best wishes ✌️...

Answer 2

Answer:

Initial velocity=0

let final velocity=V

pi=pf

or 40×5+3×0=(40+3)V

V=43200m/s