A 240 kg Mars lander is approaching the surface of Mars. Assume a gravitational acceleration of 3.7 m/s2. At the illustrated instant h = 15 m and v = 2.5 m/s. What is the average magnitude of the thrust needed to land with a touchdown speed of 0.5 m/s after 10 s?

What is the rate of change in a objects position?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

What is the role of lenses in microscopy?