Asailboat is being propelled westerly by the wind at a speed of 4 m/s. if the current is fl owing at 2 m/s to the northeast, where will the boat be in 10 min with respect to its starting position?

To solve this problem it will be necessary to apply the linear motion kinematic equations plus the law of cosines and sines. This in order to determine the resulting speed and direction of movement. Through the law of cosines we know that the final magnitude of the velocity would be

With the speed found now we can identify the distance traveled, because the displacement was made during a period of 10 minutes at the speed previously found

d = 1770m

The direction of the displacement is found using the law of sines with the velocity triangle

Since the vehicle travels from south to north and from east to west then its deployment will be:

north of due west

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000