Consider the motion of the tip of second hand of a wall clock having a length R in one hour it's
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answer : option (1) the displacement is zero and (4) the average velocity is zero.
Q -> Consider the motion of the tip of second hand of a wall clock having a length R in one hour it's...
- the displacement is zero
- the distance covered is zero
- the average speed is zero
- the average velocity is zero
Here, total displacement covered by tip of second hand , s = 0 [ because initial position of tip of second hand is also final position of it. ]
therefore, option (1) is correct choice.
distance covered, S = 3600 × 2πR
= 7200πR ≠ 0
average speed = total distance/time taken
= 7200πR/3600 = 2πR ≠ 0
average velocity = net displacement/time
= 0/1hr
= 0
therefore, option (4) is correct choice.
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Answer:
distance covered, S = 3600 × 2πR
= 7200πR ≠ 0
average speed = total distance/time taken
= 7200πR/3600 = 2πR ≠ 0
average velocity = net displacement/time
= 0/1hr
= 0
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