Scalar and Vector Scalar Physical quantity that has only a magnitude. Examples: Speed, Energy and Mass. Vector Physical quantity that has a magnitude and a direction. Examples: Force and Displacement. Man A surrounded a rectangular building with a 6 m width and a 10 m length while Man B walked inside the building along its diagonal in the same time interval of 2/3 minute. Find: Distance covered by Man A. Displacement of Man A. Speed of Man A. Velocity of Man A. Distance covered by Man B. Displacement of Man B. Speed of Man B. Velocity of Man B. 22 m. Zero m. 0.55 m/s Zero m/s 11.66 m 11.66 m northern west 0.29 m/s 0.29 m/s northern west Albert has a mass of 75 kilograms. He exerted a certain force on the Earth equals his mass multiplied by the gravitational acceleration. Suppose that the gravitational acceleration equals 9.8 m/s2. What is the magnitude and the direction of this Force ? 9.8 = 735 Newtons Downward×Force = 75
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