Simplify each expression.
Simplify each expression.
The velocity v of a roller coaster in feet per second at the bottom of a hill can be approximated by
where h is the height of the hill in feet.
a. Simplify the equation.
b. Determine the velocity of a roller coaster at the bottom of a 134-foot hill.
Simplify each expression.
The speed v of a ball can be determined by the equation
where k is the kinetic energy and m is the mass fo the ball.
a. Simplify the formula if the mass of the ball is 3 kilograms
b. If the ball is traveling 7 meters per second, what is the kinetic energy of the ball in Joules?