While competing in the long jump, a person leaps over a smooth horizontal sand surface. She lands on the surface with speed vf = 8.75 m/s at an angle θ = 31.5° below horizontal. Assume that the person moves without air resistance. Use a Cartesian coordinate system with the origin at her final position. The positive x-axis is directed from her initial to her final position, and the positive y-axis is directed vertically upwards.
Answers: 3
Physics, 21.06.2019 15:00
How much work would be needed to raise the payload from the surface of the moon (i.e., x = r) to an altitude of 5r miles above the surface of the moon (i.e., x = 6r)?
Answers: 2
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
Physics, 23.06.2019 09:20
How does an increase in temperature generally affect the rate of a reaction?
Answers: 3
While competing in the long jump, a person leaps over a smooth horizontal sand surface. She lands on...
Mathematics, 16.07.2019 20:30
English, 16.07.2019 20:30
Biology, 16.07.2019 20:30
English, 16.07.2019 20:30
Mathematics, 16.07.2019 20:30