lake compounce physics day answers
_{final} \] Since the car starts from rest: \[ m g h_i + 0 = 0 + \frac{1}{2} m v_f^2 \] The mass \( m \) cancels out: \[ g h_i = \frac{1}{2} v_f^2 \] Step 4: Solve for \( v_f \) \[ v_f = \sqrt{2 g h_i} \] Plugging in the values: \[ v_f