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1PHYSICS KINEMATICS HELP?
President was shot while at home. While sitting on the sofa near the window, one bullet came through the window and grazed the president's thigh. The CID rounded up 4 suspects : A. B, C and D. All four were found with a rifle.
Forensic scientists have concluded from evidence that the instantaneous velocity of the bullet as it hits the window is about 350m/s and its average speed is about 385m/s. Also, it had an avg deceleration of about 45m/s2. Each rifle was taken to the shooting range to be tested.
suspect: time -- bullet velocity
A: 0.0 -- 600
1.0 -- 450
2.0 -- 375
3.0 -- 330
4.0 --315
5.0 -- 300
B: 0.0 -- 420
1.0 -- 240
2.0 -- 120
3.0 -- 90
4.0 -- 75
5.0 -- 55
C: 0.0 -- 420
1.0 -- .360
2.0 -- 300
3 .0 -- 240
4.0 -- 180
5.0 -- 120
D: 0 . 0 -- 600
1.0 -- 410
2.0 ---- 320
3.0 -- 230
4.0 -- 180
5 .0 -- 150
WHO SHOT THE PRESIDENT? WHY?
THANKS, YOUR HELP IS MUCH APPRECIATED.
President was shot while at home. While sitting on the sofa near the window, one bullet came through the window and grazed the president's thigh. The CID rounded up 4 suspects : A. B, C and D. All four were found with a rifle.
Forensic scientists have concluded from evidence that the instantaneous velocity of the bullet as it hits the window is about 350m/s and its average speed is about 385m/s. Also, it had an avg deceleration of about 45m/s2. Each rifle was taken to the shooting range to be tested.
suspect: time -- bullet velocity
A: 0.0 -- 600
1.0 -- 450
2.0 -- 375
3.0 -- 330
4.0 --315
5.0 -- 300
B: 0.0 -- 420
1.0 -- 240
2.0 -- 120
3.0 -- 90
4.0 -- 75
5.0 -- 55
C: 0.0 -- 420
1.0 -- .360
2.0 -- 300
3 .0 -- 240
4.0 -- 180
5.0 -- 120
D: 0 . 0 -- 600
1.0 -- 410
2.0 ---- 320
3.0 -- 230
4.0 -- 180
5 .0 -- 150
WHO SHOT THE PRESIDENT? WHY?
THANKS, YOUR HELP IS MUCH APPRECIATED.
