A 20-kilogram object strikes the ground with 1960 J of kinetic energy after falling freely from rest. How far above the ground was the object when it was released? *

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point