How to find out how many revolutions does the object make during the first 3.1s ?

3 Answers

• During the first two seconds, the object is at 20 rad/s

  20 / 2 * pi (3.1416) = 3.183 revolutions/s

  3.183 * 2 = 6.37 revolutions in 2 seconds.

  After, the speed drop to 10 rad/s

  10 / 2*pi = 1.59 revolution/s

  1.59 * 1.1 = 1.75 revolutions between 2 and 3.1 seconds

  6.37 + 1.75 = 8.12 revolutions.

  It has done 8 revolutions in the first 3.1s

• 8 Revolutions

• you ****** up