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Grade: 12th pass
        
A rifle is aimed horizontally at a target 130ft away. The bullet hits the target 0.75 in.below the aiming point (a) what is the bullets time of flight?(b)what is the muzzle speed of the bullet?
8 months ago

Answers : (2)

Akbar Ali
16 Points
							
a plan flies 430mi east from city b and 45 mi and then 820 mi south from city b to city c in 1 h30min.
(a)what are the mignidude and the direction of desplacementvector the represent the total trip?what are
(b)the average velocity vector and 
(c)the average speed for the trip.
8 months ago
Akbar Ali
16 Points
							Answer:(a).0.064s(b).781.2m/sExplanation:(a).To get the time of flight we consider the vertical component of motion:s=12gt2∴t=√2sgt=√2×0.029.8t=0.064s(b).The horizontal component of velocity is constant so:v=st=500.064=781.2m/s
						
8 months ago
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  • 101 Video Lectures
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Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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