Question

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

Answer 1

According to the formula, the kinetic energy is:

$$K = \dfrac{m\cdot (7m/s)^2}{2} = 24.5m$$

Thus, the kinetic energy is $24.5m(J)$ if mass in substituted in $kg$ into this formula.