trigonometry

posted by .

The minute hand of a clock is 8 inches long. How far does the tip of the minute hand move in 30 minutes? How far does it move in 20 minutes?

For 30 min. I got 8pie inches. For 20 mins., I got (16pie/3)inches. but i don't know if these answers are correct. if my answers are wrong, please show me the steps to solving this.

Thanks.

Arc distance= radius*angular speed*time

angular speed for a minute hand is 1 rev per hour, or 2PI rad/hr

for 20 min:8in*2PI/hr*1/3 hr

You are correct.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    the minute hand of a clock is 6 inches long. how far does the tip of the minute hand move in 15 minutes?
  2. math

    the minute hand of a clock is 6 inches long. how far does the tip of the minute hand move in 15 minutes?
  3. algebra

    Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds?
  4. pre calc

    The minute hand of a clock is 7 inches long. How far does the tip move in 16 minutes?
  5. trig

    The minute hand of a clock is 6 inches long. What distance does its tip move in 16 minutes?
  6. math

    How far does the tip of the minute hand of a clock move in 100 minutes if the hand is 3.3 inches long?
  7. Math

    The minute hand of a clock is 6 inches long and moves from 3 o clock to 5 o clock. how far does the tip of the minute hand move. Express your answer round to two decimal places. Can you solve this?
  8. trianom

    the min. of a clock is 9 inches long and move from 6 to 8 o'clock. hor far does the tip of the min. hand move?
  9. trig

    The minute hand of a clock is 7 inches long and moves from 12 to 11 ​o'clock. How far does the tip of the minute hand​ move?
  10. Pre-Calculus

    The minute hand of a clock is 3 inches long. How far does the tip of the minute hand move in 5 minutes?

More Similar Questions