An airplane piolet sets a compass course due west and maintains an airspeed of 219 km/h. after flying for a time of 0.480 h, she finds herself over a town a distance 123 km west and a distance of 19 km south of her starting point. a.) find the magnitude of the wind velocity.
b.) find the direction of the wind velocity.
c.) if the wind velocity is 43 km/h due south, in what direction should the pilot set her course to travel due west? use the same airspeed of 219 km/h.

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?