How Does Momentum Affect a Moving Toy Truck When a Brick is Dropped on It?"

  • Thread starter Thread starter puregoodboi
  • Start date Start date
  • Tags Tags
    Momentum Stupid
AI Thread Summary
When a 1.5 kg brick is dropped onto a 2.5 kg toy truck moving at 0.80 m/s, the combined mass after the brick lands is 4 kg. The final velocity of the truck and brick together is calculated using the conservation of momentum, resulting in a speed of 0.50 m/s. The vertical force of the brick does not affect the horizontal momentum of the truck. The discussion highlights the application of momentum principles in a real-world scenario. The conclusion confirms that the truck does not go through the floor upon impact.
puregoodboi
Messages
26
Reaction score
0
a 1.5 kg brick is dropped vertically onto a 2.5 kg toy truck, which is moving across a level floor at 0.80 m/s. With what velocity do the truck and brick continue to movie, after the brick has landed on the truck.

i've dealt with only horizontal movements andd i haven't covered this yet in class sooo ineeed helppp lol would the truck go through the floor if the brick hit it ? lol =S
 
Physics news on Phys.org
nevermind i got the answer now its 0.50 m/s lol
 
m1V1=m2V2
where m1=2.5Kg V1=0.8m/s m2=1.5+2.5=4Kg V2=?
i suppose this is the answer because there is no vertical component of the bricks force acting on the truck...
 
i got it right then...:)
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top