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CASE STUDY TYPE OF QUESTIONS (4 MARK):
37) Distance and displacement are two quantities that seem to mean the same but are different wit
different meanings and definitions. Distance is the measure of "how much distance an object ha
covered during its motion" while displacement refers to the measure of "how far is the object actuall
from initial place." Using this data answer the following questions.
a) Kapil travels 20 km North but then comes back to South for 40 km to pick up a friend. Wha
is kapil's total distance?
b) Rahul travels 20 km East but then comes back to West for 10 km. Find displacement.
c) Define distance and displacement of a particle.
38) Answer the following questions by observing the following diagram:
D
10 m
10 m
10 m
B
10 m
a) What is the displacement, when the particle moves from point A to D?
b) What is the displacement, when the particle moves from point A to C through A-B-C?
c) Find distance and displacement covered when the particle moves in path ABCDA i.e.
starts from A and ends at A?
answer
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Answer :

Answer:

37) Answer:

a) Kapil travels 20 km North and then 40 km South. Total distance traveled by Kapil:

Total distance = 20 km (North) + 40 km (South) = 60 km

b) Rahul travels 20 km East and then 10 km West. Displacement of Rahul:

Displacement = 20 km (East) - 10 km (West) = 10 km East

c) Definitions:

- Distance: The total path length covered by an object during its motion.

- Displacement: The straight-line distance between the initial and final positions of an object, irrespective of the path taken.

38) Answer

a) Displacement when moving from point A to D:

Displacement = 10 m (D) - 10 m (A) = 0 m

b) Displacement when moving from point A to C through A-B-C:

Displacement = 10 m (C) - 10 m (A) = 0 m

c) Path ABCDA

- Distance - Total distance covered = 10 m + 10 m + 10 m + 10 m + 10 m = 50 m

- Displacement - From A to A, the displacement is 0 m (since it ends at the starting point).

Explanation:

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Answer:

37. a) Distance is the total path covered.

Distance = 20 + 40 = 60km

b) Displacement is the path between initial and final position.

Displacement = 20 - 10 = 10km (as 20 km covered in east then came back to west for about 10 km)

c) Distance is defined as the total path covered by a particle. it does not depend on direction.

Displacement is defined as the shortest path between initial and final position. It depends on the direction.

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