A camel sets out to cross the desert, which is 42.7 km wide in the north-south direction. The camel walks at the uniform speed 3.81 km/hr along a straight line in the direction 51.9◦ north of East (only the camel knows why he chose that particular direction).

Question

A.) How long will it take the camel to cross the desert? Answer in units of hr

B.)Calculate the camel’s eastward displacement while he crosses the desert. Answer in units of km

Answer 1

A) 42.7/sin51.9 / 3.81 = 14.24 hr
B) 42.7/tan51.9 = 33.48 km