Question

An ore cart of mass 1200 kg is rolling at a speed of 12.8 m/ sacross a flat surface. A crane dumps 338kg of ore into the cart from directly above it. How fast does the cart move after being loaded with ore? Assume that frictional forces with the flat surface are negligible.

10 m/s
4.2 m/s
3.8 m/s
5.7 m/s

Answer 1

@Abhisar

Answer 2

Use conservation of linear momentum

Answer 3

I got 45.7 I did v1=m2*v2/m1

Answer 4

\(\large\sf m_1v_1=(m_1+m_2)v_2\)

Find v2

Answer 5

Ok I got 10 thanks