trig problem

[emccle]

I thought this was an easy problem, but I might be doing it wrong since it asks for 3 significant digits.

Find the linear velocity of a point with uniform circular motion if the point covers a distance of 20cm in 4 seconds.(3 significant digits)

I used the formula v=s/t

v=20/4

v=5 cm/sec

 

[wjm11]

Find the linear velocity of a point with uniform circular motion if the point covers a distance of 20cm in 4 seconds.(3 significant digits)

I used the formula v=s/t

v=20/4

v=5 cm/sec

If they want 3 significant digits, they should provide 3 in the problem statement: 20.0 cm and 4.00 s. Then the correct answer would be 5.00 cm/s.