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find the average velovity of a projectile projected with vekocity 'u'm/s making an angle "theta" between its stsrting point and highest point?

 find the average velovity of a projectile projected with vekocity 'u'm/s making an angle "theta"  between its stsrting point and highest point?

Grade:12

2 Answers

AKASH GOYAL AskiitiansExpert-IITD
419 Points
10 years ago

Dear Rajan

See the pic for solution

All the best.

AKASH GOYAL

AskiitiansExpert-IITD

 

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vikas askiitian expert
509 Points
10 years ago

average velocity = total displacement / total time

H is the maximum height and R is the horizontal range of projectile ....

at highest point, projectile is H m above in verticle  and R/2 m  far in horizontal direction from the point of projection..

displacement = sqrt{ H^2 + (R/2)^2} ={u^2sin@ sqrt(1+3cos^2@) } /g

time taken by projectile to reach to maximum height is t = T/2 =usin@/g

Vavg = usqrt( 1+3cos^2@)

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