yoalin

A bicyclist with mass (72.0+C) kg wants to make a turn with a radius of (27.5) m on a horizontal surface. If she is riding at a speed of (14.45) m/s, at what angle from the vertical will she need to lean to make the desired turn? Give your answer in degre...

A student with mass (72.0) kg rides on a roller coaster with a vertical loop. At the top of the loop the track has a radius of (23.7) m and the roller coaster moves at speed of (25.9) m/s at the top. Determine the normal force from the seat on the student...

I got (mu)(4434)=(425)(21.5^2)/31.8 Would the answer be 1.39 ?? Thank you