Sotha Bun

Two motorcycles of equal mass collide at a 90 intersection. If the momentum of motorcycle A is 450 kg km/h west and the momentum of motorcycle B is 725 kg km/h south, what is the magnitude of the resulting momentum of the final mass?

2. Two pickup trucks crash at a 90 degree intersection. If the momentum of pickup A is 4.60 x10^4 kg km/h north and the momentum of pickup B is 6.25 x 10^4 kg km/h east, what is the magnitude of the resulting momentum of the final mass?

3. Two vehicles collide at a 90 degree intersection. If the momentum of vehicle A is 6.10 x10^5 kg km/h south and the momentum of vehicle B is 7.20 x 10^5 kg km/h east, what is the magnitude of the resulting momentum of the final mass?

4. Two vehicles of equal mass collide at a 90° degree intersection. If the momentum of vehicle A is 1.20x10^5 kg km/h east and the momentum of vehicle B is 8.50x10^4 kg km/h north, what is the resulting momentum of the final mass?

Water is pumped at 120m^3/min from a lake into a tank 35 m above the lake. (a) What power, in kW, must be delivered by the pump? (b) What is the increase in potential energy of the water each minute?