Question

a girl of mass 40kg jumps with a horizontal velocity of 5m/s on to a stationry cart with frictionals wheels the mass of the cart is 3kg what is her velocity as the cart starts moving assuming that there is no external force working on the cart​

Answer 1

Answer:

Mass of girl = 40kg

Velocity = 5m/s

Mass of cart = 3kg

Velocity of cart = 0m/s

Momentum of girl + momentum of cart = momentum of both after collision

m1v1 + m2v2 =( m1+m2) u

40*5 + 3*0 = (40+3)u

200 + 0 = 43u

Velocity after collision = 200/43

= 4.65 m/s

Explanation:

Hope it helps

Mark as brainliest