Question

A girl of mass 40kg jumps with a horizontal velocity of 5/s on to a stationary cart with friction less wheels the mass of the cart is 3kg what is her velocity as the cart stats moving assume that there is no external un balanced force working in the horizontal direction

Answer 1

hope it helps
we take the combined mass of girl and cart for calculation
mark as braniliest if it is correct

Answer 2

Answer:

Mass of the girl = 40 kg

Mass of the cart = 3 kg

Velocity of the girl = 5 m/s

Velocity of the cart = 0 m/s

To Find :-

Velocity as the cart starts moving.

Solution :-

Firstly let's find the Mounmentum of girl

[P = mv]

Here,

P = Mounmentum

M = Mass

V = Velocity

P = 40 × 5

Hence, Mounmentum of girl is 200 kg m/s .

Now,

Let's add the Mounmentum of girl and cart

200 + 0 = 200 kg m/s

Let's find total mass

Total mass = 40 + 3 = 43 kg

Velocity=Mounmentum/mass

V = P/M

Velocity = 200/43

Hence :-

Velocity of cart is when start moving is 4.65 m/s.

@ananya