Question

The girl has a speed of 7m/s at the bottom of a ramp. Calculate the kinetic elegy of the girl at the bottom of the ramp. Use the equation: Kinetic energy= 0.5 x mass x (speed) ²

Answer 1

E=(0.5)(m)(v^2)
E=(0.5)(m)(7^2)
E=(24.5)(m)

You haven’t given the mass of the girl. Sub her mass into the equation for m to get the kinetic energy of the girl. (Units for energy are joules (J).