A projectile is thrown at different angle of projection (with horizontal) o with same
speed. From the given options, find o for which range will be maximum
(A) 70"
(B) 30
(C) 35
(D) 50"
Answers
Answered by
2
Answer:
range is Max at 45 degree means it is decreasing above 45 degree and increasing up to 45 degree so answer is 35 degree
Answered by
0
Answer
From work energy theorem we know that work done by all the forces is equal to the change in kinetic energy,
V
1
=V
2
=V
3
θ
1
+θ
2
=90 & θ
2
=45
⇒
2
θ
1
+θ
3
=θ
2
⇒θ
1
,θ
2
& are in AP
T
1
=
g
2usinθ
1
⇒T
2
=
g
2usin45
∘
=T
3
=
g
2ucosθ
1
⇒
2
T
1
2
+T
3
2
=T
2
2
⇒T
1
2
,T
2
2
&T
3
2
are in AP.
Hence B, C and D are correct options
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