A car of mass 700 kg and movie at a speed of 30 m per 2nd collides with a stationary truck of mass 1400 kg and the 2 vehicles locked together on impact and the combined velocity of the car and the truck after the collision is what

10m/s

Explanation:

(m1)(v1)+(m2)(v2)= (m1+m2)(v[final])

(700)(30)+(1400)(0)= (700)(v)+(1400)(v)

21000= 2100v

v=10m/s

dang that balls went far

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods