Consider the motion of the tip of second hand of a wall clock having a

1.	Consider the motion of the tip of second hand of a wall clock having a length R in one hour it's
Answer» 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.

Consider the motion of the tip of second hand of a wall clock having a length R in one hour it's

Answer»

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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