saplinglearning.com University of Memphis PHYS 2010 Spring16 FRANCE m/ibis/css/A

Question

saplinglearning.com University of Memphis PHYS 2010 Spring16 FRANCE m/ibis/css/Ac bility php?text m/ibis/css/Ac bility php?t Sapling Sapling Learning University of Memphis PHYS 2010 Spring16 FRANCESCHETTI Activities and Due Dates HW: 2D Kinematics My Assignment Attempts Score 2/15/2016 06:00 PM A 78.4/100 Gradebook Periodic Table 98 Qu on 9 of 10 00 Map 00 A soldier is tasked with measuring the muzzle velocity of a new rifle. Knowing the Table 1: Vertical principles of projectile motion, he decides to perform a simple experiment at the displacement data 00 indoor firing range. The soldier hangs a target a distance of d 107 m from the end o ounted so that the bullet exits moving horizontally a Bullet drop he sa me height as the bullseye. After 6 trials, the soldier tabulates the values he h, in cm 97 measured for the distance, h, from the bullseye to the bullet strike. 6.14 7.12 00 7.36 95 49 6.29 What is the most accurate muzzle velocity that the sold can report to his sergean Numbe 95 Previous Check Answer Next Give Up & View Solut Exit Hint 2016 Sapling Le 47 privacy policy Phys Chegg C logout help Resources Assignment Information Available From 2/3/2016 06:00 AM 2/15/2016 06:00 PM Due Date: Allowed with 10% of the Late submissions points possible deducted per day until 02/25/2016 06:00 PM Points Possible 100 Grade Category: Graded Description: Policies: Homework You can check your answers You can view solutions when you complete or give up on any question You can keep trying to answer each question until you get it right or give up You lose 5% of the points available to each answer on for each incorrect attempt at that n your que ansWe O eTextbook O Help With This Topic Web Help & Videos O Technical Support and Bug Reports

Explanation / Answer

For h = 6.14 cm

time of flight is t = sqrt(2*h/g) = sqrt(2*0.0614/9.81) = 0.111 s

velocity of bullet is u = R/t = 107 /0.111 = 964 m/s

for h = 7.12 cm =0.0712 m

t = sqrt(2*0.0712/9.81) = 0.12 s

u = 107/0.12 = 891.6 m/s

for h = 7.36 cm = 0.0736 m

t = sqrt(2*0.0736/9.81) = 0.122 s

u = 107/0.122 = 877 m/s

for h = 6.05 cm = 0.0605 m

t = sqrt(2*0.0605/9.81) = 0.111

u = 107/0.111 = 964 m/s

for h = 7.49 cm = 0.0749

t = sqrt(2*0.0749/9.81) = 0.123 S

u = 107/0.123 = 870 m/s

for h = 6.29 cm = 0.0629

t = sqrt(2*0.0629/9.81) =0.113 s

u = 107/0.113 = 947 m/s

average velocity is (947+870+964+877+964+891.6)/6 = 919 m/s is the final answer

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.