Answer:
Highest point reached  = 3.37 m
Explanation:
Initial velocity, = 7.1 m/s
Initial vertical velocity = 7.1 sin 61 = 6.21 m/s
Consider the vertical motion of skateboarder,
We have equation of motion, v² = u² + 2as
           Initial velocity, u = 6.21 m/s
           Acceleration, a = -9.81 m/s²
           Final velocity, v = 0 m/s
          Substituting
                        v² = u² + 2as
                        0² = 6.21² + 2 x -9.81 x s
                        s = 1.97 m
So from ramp the position it goes up by 1.97 m
        Highest point reached = 1.97 + 1.4 = 3.37 m