Asked by Oxy

A small cart of mass 300g when emty can move freely on a horizontal surface. The cart contains 100g of sand and moves initially with speed of 18cm s^-1.
a)what would be the speed of the cart if a further 200g of sand were dropped vertically into it from a stationary container?
a)If instead of adding sand to the cart,what would be the final speed of the cart?.

Answers

Answered by Chanz
Another conservation of momentum question. mv before = mv after. Solve for second v.
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