A 3,00 kg truck moving at +10 m/s hits a 1,000 kg parked car in which moves off at +15 m/s what is the velocity of the truck

Explanation:

Momentum before collision = momentum after collision

If

m₁ = 300 kg

v₁= 10 m/s

m₂ =1000 kg

v₂ = 0 as the car was parked

momemum before collision =

m₁ v₁ + v₂ m₂= 3000kgm/sec

momentum after collision= m₁ v₃+ v₄m₂=

300v₃+15m/sx 1000kg

now from the law of conservation of momentum

momentum before collision= momentum after collision

3000kgm/s= 300v₃ +15000kgm/s

-15000+3000= 300v₃

-12000=300v₃

v₃= -40m/s

the velocity of truck after collision is 40m/s and the negative sign indicates that its a recoil velocity.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular