2. An airplane flying parallel to the ground bound for Disney. The plane travels south for 200 km before turning at a 15 degree angle east of its original direction
and continuing on for another 36 km. Find the magnitude and direction of the
plane's displacement.

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.