Class Management I Help HW 8 Begin Date: 1/19/2017 12:01:00 AM Due Date: 4/12/20
ID: 1621059 • Letter: C
Question
Class Management I Help HW 8 Begin Date: 1/19/2017 12:01:00 AM Due Date: 4/12/2017 11:59:00 PM End Date: 5/31/2017 10:00:00 AM (20%) Problem 4: A bullet with a mass of m 15 g is shot out of a rifle that has length L 1.06 m. The bullet spends t 0.14 sin the barrel. P 50% Part (a) Calculate the magnitude of the bullets acceleration in meters per second squared, as it travels through the rifle's barrel. You may assume the acceleration is constant throughout the motion. Grade Summary Deductions Potential Late Work 50% Late Potential 50% cotano asino acoso 4 5 6 3 2 3 atano acotano sinho Attempts remaining: per attempt) detailed view e Degrees o Radians VO give up! Feedback: deduction per feedback. Hints: deduction per hint. Hints remaining in newtons acting on the bullet? A 50% Part What is the numerical value of the net force F NETExplanation / Answer
Here ,
a) m = 15 gm
L = 1.06 m
t = 0.14 s
let the acceleration is a
Using second equation of motion
L = 0.50 * a * t^2
1.06 = 0.50 * 0.14^2 * a
a = 108.2 m/s^2
the magnitude of acceleration is 108.2 m/s^2
b)
Fnet = m * a
Fnet = 108.2 * 0.015
Fnet = 1.622 N