A skateboard has a momentum of 25 kg(m/s)what will be the momentum If its mass is double ?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up