Question

18. Case Study Based-2
Some circus artists are practising climbing ropes, that are tightly stretched and tied
from the top of a vertical pole to the ground.
First rope
8 m
Pole
Second rope
m
(1) If the angle made by one of the ropes with the ground level is 30°, and height of the
pole is 8m, then the length of the rope is
(a)
16/3
(6) 16 m
(0) 4 m
(d) 8,3 m
3
(ii) The distance of the foot of the pole from the base of the second rope is 8 m. Its angle
of elevation from the ground is
(a) 30°
(6) 45°
(c) 60°
(d) None of the above
(iii) The length of the second rope when first rope is 8 m long is
8
(a) 8/2m
(b) 83 m (c) 8 m
3
(iv) If a rope is tied at an angle of 60°, then the ratio of the length of the rope to the length
of the pole is
(a) 1:3
(6) 13:1
(c) 3:2
(d) 2:3
(u) If an artist takes 2 minutes to climb up the 8 m rope the speed of climbing is
1
(a)
(b) 15 m/s (c) 4 m/s
(d) 6 m/s
רון
15 m/s​

Answer 1

Answer:

Some circus artists are practising climbing ropes, that are tightly stretched and tied

from the top of a vertical pole to the ground.

First rope

8 m

Pole

Second rope

m

(1) If the angle made by one of the ropes with the ground level is 30°, and height of the

pole is 8m, then the length of the rope is

(a)

16/3

(6) 16 m

(0) 4 m

(d) 8,3 m

3

(ii) The distance of the foot of the pole from the base of the second rope is 8 m. Its angle