1. -/3 pointsGiancoliwA7 2.P.001 A truck travels due east for a distance of 1.1
ID: 1876856 • Letter: 1
Question
1. -/3 pointsGiancoliwA7 2.P.001 A truck travels due east for a distance of 1.1 km, turns around and goes due west for 7.8 km, and finally turns around again and travels 3.2 km due east. (a) What is the total distance that the truck travels? km (b) What are the magnitude and direction of the truck's displacement? magnitude direction km Select 2. -/2 pointsGiancoliWA7 2.P.003 Two soccer players kick a soccer ball back and forth along a straight line. The first player kicks the ball 13 m to the right to the second player. The second player kicks the ball to the left weakly; it only moves 2.3 m before stopping (Consider the right to be the positive direction. Where applicable, indicate the direction with the sign of your answer.) (a) What is the total distance that the ball moved? (b) At the end, what is the displacement of the ball (from the first player)? 3. -/1 pointsGiancoliWA7 2.P.005 Nerve impulses in the human body travel at a speed of about 100 m/s. A 2.0 m tall man accidentally drops a hammer on his toe. How long does it take for the nerve impulse to travel from his toe to his brain? 4. -/2 pointsGiancoliWA7 2.P.015 A plane lands on a runway with a speed of 125 m/s, moving east, and it slows to a stop in 11.0 s. What is the magnitude and direction of the plane's average acceleration during this time interval? magnitude direction m/s -Select- vExplanation / Answer
1) a) Total distance travelled= 1.1km+ 7.8km + 3.2km= 12.1km
Now b) Displacement = shortest distance travelled
= 1.1km-7.8km+3.2km= 3.5 km ( Magnitude)
Direction- West
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