VA Assignment 4 G A44-g bullet leaves the x MCChegg Study IGuided Sc x MC xc Phy
ID: 1526378 • Letter: V
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VA Assignment 4 G A44-g bullet leaves the x MCChegg Study IGuided Sc x MC xc Physics Question l ci x C www.webassign ne 15467739 t/web/Student/Assignment-Responses/submit?dep Assignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your last submission is used for your score. 1. -1 points SerCP10 4.P010.WI My Notes Ask Your Teacher A 4.4-g bullet leaves the muzzle of a rifle with a speed of 340 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.85-m-long barrel of the rifle? Need Help? Read It Watch It 2. 313 points I Previous Answers SerCP10 4-P.012. My Notes Ask Your Teacher wo forces are applied to a car in an effort to move it, as shown in the figure below. (Let F1 415 N and F2 359 N. Assume up and to the right are in the positive directions.) a R n 1035 PM 1/30/2017Explanation / Answer
m = 4.4 * 10^-3 kg
v = 340 m/s
s = 0.85 m
Initial speed, u = 0
Calcualting the acceleration provided by the rifle,
v^2 = u^2 + 2*a*s
340^2 = 0 + 2*a*0.85
a = 68000 m/s^2
We know,
Force, F = m*a
F = 4.4 * 10^-3 * 68000
F = 299.2 N
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