A river with a constant speed 5 km per hour. the distance time graph of a person that crosses the river directly is shown in the figure. the direction of his velocity related to water makes with the direction of river flow an angle of150°120°135°127°
A river with a constant speed 5 km per hour. the distance time graph of a person that crosses the river directly is shown in the figure. the direction of his velocity related to water makes with the direction of river flow an angle of
150°
120°
135°
127°