Question

A cart of mass 50kg is moving on a straight track with a speed of 12m/s. A mass of 10kg is gently put into the cart. what will be the velocity of the cart after this?

Answer 1

total mass of.the cart =50+10=60

Calculating the momentum

60×v=50×12

50×12/60

=>10m/s

Answer 2

Answer:

GIVEN: M1=50KG

M2=50+10=60KG

V1=12m/s

V2=?

FORMULAE:M1V1=M2V2

DERIVED FORMULAE:

50×12=60×V2

600=60V2

600/60=V2

V2=10m/s

HOPE IT HELPS