A
A plane moving with velocity v terns by
angle theta and its speed remains v. Find change
in velority of plane? . .
Answers
Answered by
0
Answer:
The change in the magnitude of its velocity is zero.
C
The magnitude of the change in its velocity is 2v sin (θ/2).
Since, magnitude of velocity, i.e speed, is constant, thus no change in magnitude of velocity.
But, magnitude of change in velocity is given as:
∣
v
f
−
v
i
∣=
v
2
+v
2
−2.v.v.cosθ
=v
2(1−cosθ)
Now, 1−cos2θ=2sin
2
θ,or1−cosθ=2sin
2
θ/2
Thus, magnitude of change in velocity =v
4sin
2
θ/2
=2v.sin(θ/2)
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