The engine of lunar lander is shut off when the lander is 5.0 m above the surface of the moon and descending at 2.0 m/s. If the acceleration due to gravity on the moon is 1.6 m/s2, what is the speed of the lander just before it touches the surface? (Hint: Make a diagram. Consider vector directions) 5.

From the system below, determine absolute Moment about point O. (absolute value only)

A large wooden turntable in the shape of a flat disk has a radius of 2.30 m and a total mass of 120 kg. The turntable is initially rotating at 3.15 rad/s about a vertical axis through its center. Suddenly, a 71.0 kg parachutist makes a soft landing on the turntable at a point on its outer edge. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Anyone can be a ballerina. Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the parachutist as a particle.) Express your answer in radians per second. W = ΜΕ ΑΣΦ ? rad/s

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.80 x 107 m and its fotation period to be 22.3 hours. You have previously determined that the planet orbits 2.20 x 10 m from its star with a period of 392 earth days. Once on the surface you find that the free-fall acceleration is 12.2 m/s² Part A What is the mass of the planet? Express your answer with the appropriate units. НА - 0 ? mp = Value Units Submit Request Answer ▾ Part B What is the mass of the star? Express your answer with the appropriate units. HA -> 0 ? ms Value Units Submit Request Answer