A person walks from point A to point B as shown in Fig. 3.31. What is the person’s displacement relative to point A?
Answer to relevant QuestionsA meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8: 00 PM, the storm was 60 mi northeast of her station. At 10:00 PM, the storm is at 75 mi north. (a) The general direction of the ...Two students are pulling a box as shown in Fig. 3.26, where and F1 = 100 N F2 = 150 N. What third force would cause the box to be stationary when all three forces are applied? The x-component of a velocity vector that has an angle of to the has a magnitude of 4.8 m/s. (a) What is the magnitude of the velocity? (b) What is the magnitude of the y-component of the velocity? In laboratory situations, a projectile’s range can be used to determine its speed. To see how this is done, sup-pose a ball rolls off a horizontal table and lands 1.5 m out from the edge of the table. If the tabletop is 90 ...A ball rolls down a roof that makes an angle of to the horizontal (Fig. 3.37). It rolls off the edge with a speed of 5.00 m/s. The distance to the ground from that point is two stories or 7.00 m. (a) How long is the ball in ...
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