Answer:
Velocity on the right side of the cart

Step-by-step explanation:
Given
⇒The mass on the left of the cart

Its velocity
,

⇒Mass on the right of the cart

Velocity
We have to find

From
The law of conservation of linear momentum:
We can say that.
Initial momentum will equalize the final momentum.
And momentum is the product of mass and its velocity.
Assigning one of its velocity as negative because both are in different direction.
Lets call

Recalling the formula and plugging the values.


So the velocity of the cart on the right side that has a mass of
is
