Rasika walks 20 m North. Then the turns right and walks 30 m. Then he turns right and walks 35 m. Then he turns left and walks 15 m. Then he again turns left and walks 15 m. In which direction and how many meters away is he from his original position ?
(A) 15 meters West (B) 30 meters East
(C) 30 meters West (D) 45 meters East
Rasika walks 20 m North. Then the turns right and walks 30 m. Then he turns right and walks 35 m. Then he turns left and walks 15 m. Then he again turns left and walks 15 m. In which direction and how many meters away is he from his original position ?
(A) 15 meters West (B) 30 meters East
(C) 30 meters West (D) 45 meters East
50 W/m2 energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m2 surface area will be close to (c=3 |
|||
(a) |
20 |
(b) |
35 |
(c) |
15 |
(d) |
10 |
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