(Solved): 15 points A 1kg object with initial speed v collides with a 2kg object (which is initially sta ...

15 points A $1\mathrm{kg}$ object with initial speed $v$ collides with a $2\mathrm{kg}$ object (which is initially standing still). The objects stick together in a perfectly inelastic collision. Check all the following answers which are true statements. There may be more than one correct answer! The final speed of the objects is $\frac{2}{3}v$. More than $50\%$ of the initial kinetic energy is converted to non-conservative work. More than $50\%$ of the initial momentum is converted to non-conservative work. The total kinetic energy (in the form of moving objects) is the same before and after the collision. The total momentum is the same before and after the collision.