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CBSE Class 7 Answered

Ram travels on a straight road. He goes from position A to position B. The distance between A and B is 4 Km. Now from position B he turns back and trvels a distance of 2 Km to reach the position C.

a) Find the distance covered by Ram during the whole journey.

b) Find the magnitude of his displacement.

Asked by Shreeya Nemani | 28 Aug, 2018, 08:17: PM
Expert Answer
Assuming that he is travelling forward and backward along a straight linear path.
 
a)
The distance covered by Ram during the whole journey
Distance from position A to position B = 4 Km
Distance from position B to position C = 2 Km
Therefore, the total distance  covered by Ram during the whole journey = 6 km
 
b) 
The magnitude of his displacement
Distance from position A to position B = 4 Km
Distance from position B to position C = 2 Km
Displacement is change from the original position to final position.
The distance that he travelled back shall be taken as negative.
Magnitude of his displacement= 4 - 2 km = 2 Km


Answered by Abhijeet Mishra | 29 Aug, 2018, 10:18: AM
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