An aeroplane is horizontally 2 km above the ground is observed at an elevation 60°. If after 10 seconds the elevation from the same point is 60°, the distance travelled by the aeroplane is

Question

An aeroplane is horizontally 2 km above the ground is observed at an elevation 60°. If after 10 seconds the elevation from the same point is 60°, the distance travelled by the aeroplane is (A) 2 ( (√ 3 1 /√ 3))km (B) 2 ( √ 3 1 )km (C) ( (√ 3 1 /√ 3) )km  (D) none of these.

Tardigrade Admin · Accepted Answer

Correct answer is (a) 2 ( (√ 3 1 /√ 3))km

Q. An aeroplane is horizontally 2 km above the ground is observed at an elevation 60 $^{\circ}$ . If after 10 seconds the elevation from the same point is 60 $^{\circ}$ , the distance travelled by the aeroplane is

$2 (\frac{3 1}{3}) km$

$2 (31) km$

$(\frac{3 1}{3}) km$

none of these.

Correct answer is (a) $2 (\frac{3 1}{3}) km$

Q. An aeroplane is horizontally 2 km above the ground is observed at an elevation 60∘. If after 10 seconds the elevation from the same point is 60∘, the distance travelled by the aeroplane is

2(3​3​1​)km

2(3​1)km

(3​3​1​)km