a wall clock has its minutes hand 7cm long find average speed and average velocity of the tip of the hand between 9am to 9:30 am
Answers
Answered by
0
Answer:
14 and 22 cm.
Explanation:
Since, the clock is moved from 9:00 to 9:30, the minute arm has traveled and completed a semi circle to reach 9:30. So, the the distance covered by the minute arm will be the arc from 9:00 to 9:30. The displacement will be the diameter of the swept area of the minute arm which will be 14 cm,
The, distance will be π*r where r is the radius or the length of the minute arm.
On solving we will get distance to be 22/7*7 = 22 cm.
Similar questions