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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?
one year 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.
one year 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
						
one year ago
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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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