Question

An astronaut with a mass of 75kg slides down a slope that is 3,5m high and 25cm from the ground. Assume that the frictional force is negligible. What is the velocity of the astronaut at the end of the slope?

Answer 1

$$v=\sqrt{2gh}\\v=\sqrt{2(9.8)(3.5)}=8.3\frac{m}{s}$$