College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 51

During part of its trajectory (which lasts exactly 1 min) a missile travels at a constant speed of 2000 mi/h while maintaining a constant orientation angle of 20° from the vertical. (a) During this phase, what is true about its velocity components: (1) v y v x , (2) v y = v x , or v y v x [ Hint : Make a sketch and be careful of the angle.] (b) Determine the two velocity components analytically to confirm your choice in part (a) and also calculate how far the missile will rise during this time.