Mastering Physics: Chapter 03 Homework Assignment Google Chrome https:// session

Question

Mastering Physics: Chapter 03 Homework Assignment Google Chrome https:// session.masteringphysics.com 446801648 offset next PHY 121, Spring 2015 Signed in as Ali Bou-Rashed l Help l Close Chapter 03 Homework Assignment t Arrow Hits Apple Resources previous l 4 of 8 l next t Arrow Hits Apple Part A An arrow is shot at an angle of 6 45° above the Find t the time that the arrow spends in the air horizontal. The arrow hits a tree a horizontal distance Answer numerically in seconds, to two significant figures. D 220 m away, at the same height above the ground as it was shot. Use g 9.8 m/s or the magnitude of the acceleration due to gravity 2v Hints My Answers Give Up Review Part Submit Incorrect, one attempt remaining, Try Again The correct answer does not depend on: vy Suppose someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree. Part B How long after the arrow was shot should the annle be dronned in order for the arrow to nierce the annle as the arrow hits the tree? 8:48 PM 2/9/2015

Explanation / Answer

here,

theta = 45 degree,

Range = 220 m

Range = V^2 * sin(2*45)/g

V^2 * sin(2*45)/g = 220

v = 46.4 m/s

Now, Time of flight

T = 2v*sin(theta)/g

T = 2*46.4 *sin(45)/9.8

T = 6.7 s

time of flight is 6.7 s

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---