Question

A girl of mass 40 kg jumps with a horizontal velocity of 5 m s-1 onto a stationary cart with frictionless wheels. The mass of the cart is 3 kg. What is her velocity as the cart starts moving?

Answer 1

this is easy. or. this

mark as brainlist

Answer 2

Answer:

4.65m/s

Explanation:

Mass of girl= 40kg

Initial velocity= 5m/s

Mass of cart= 3kg

Initial velocity= ?

FORMULA:- mAuA+mBuB=mAvA+mBvB

40×5+3×0=40×v+3×v

200+0 =40v+3v

200 =43v

v =200/43=4.65m/s