10. An object moves in the x-y plane subject to a force F(x.y) = y i + (x + y) j How much work is done by this force if the object moves in a straight line from the point (0,1) to the point (1,2)? (Hint: you must find the equation of the line.) 11. Mars has mass of 6.42 × 1023 kg and a radius of 3,380 km. a) What is the acceleration of gravity at the surface of Mars? b) How long would it take an object to fall 10.0 meters from rest on Mars? c) Phobos, a moon of Mars, orbits Mars at a distance of 6,000 km from the surface of Mars. What is its orbital speed

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.