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JEETENDRA

· started a discussion

· 1 Months ago

about (Question: 361276.0 )

1234 options are wrong

Question:

The angle of elevation of an aeroplane from a point on the ground is 60º. After 15 seconds flight, the elevation changes to 30º. If the aeroplane is flying at a height of  15003    m, find the speed of the plane.

Options:
A)

300 m/sec.

B)

200 m/sec.

C)

100 m/sec.

D)

150 m/sec.

Solution:

Ans: (b)


JEETENDRA

· commented

· 1 Months ago

thanks
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