Ima Scarred (m = 56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5 m high roller coaster loop.
Assume there is no friction nor air resistance. If no
energy is lost or gained, then what will be Ima
Scaarred's total mechanical energy at the top of the
loop? (Round to 2 decimal places)

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

The magnets would be | n s | and | s n|