A roller coaster car has a mass of 900 kg and is traveling through a vertical loop of radius 60 m. What is the minimum speed to just maintain contact with the track at the inside of the top of the loop?

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

it is a negative acceleration