⚠️⚠️A toy car with a mass of 0.65 kg is traveling at a speed of 2.0 m/s. It
collides head on with a 0.55 kg car traveling at a speed of 3.0 m/s in the
opposite direction. The 0.65 kg car bounces straight back with a speed of
1.5 m/s. Find the speed of the 0.55 kg car immediately following the
collision. *
1.1m/s, 2.4m/s, 3.5m/s, 7.1m/s

answer

1.1 m/s

explanation

momentum is conserved, so the total momentum of both cars is the same before and after the collision, where momentum is the product of mass and velocity

m1 = 0.65 kg

m2 = 0.55 kg

v1 = 2.0 m/s

v2 = -3.0 m/s (negative because moving in opposite direction)

v3 = -1.3 m/s (since it bounces back, this is in the opposite/negative direction)

it becomes positively charged by charging it

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.