A car of mass 700 kg and moving at a speed of 30 m/s collides with a stationary truck of mass fire 1400 kg, and the two vechicles lock together on impact. The combined velocity of the car and truck after the collision is ___ m/s.

10 m/s

Explanation:

m1 v1i + m2 v2i = (m1+m2) vf

(700kg) (30m/s) + (1400kg) (0m/s) = (700 + 1400)kg * vf

vf = 10 m/s

Leave a like and mark brainliest if this helped

Leave a like and mark brainliest if this helped

it is easily magnetized.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.