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1. A car is driven 4.5 km due north before the driver remembers a forgotten package. The car is driven back 4.5 km in the opposite direction. What is the total distance covered by the car? What is the net displacement?

1. A car is driven 4.5 km due north before the driver remembers a forgotten package. The car is driven back 4.5 km in the opposite direction. What is the total distance covered by the car? What is the net displacement?

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter1: Units And Measurement
Section: Chapter Questions
Problem 88CP: The first atomic bomb was detonated on July 16, 1945, at the Trinity test site about 200 mi south of...
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What's More Activity 3.2: Solving Distance and Displacement Problems b le Ina lo wellimet uoyA boteoibni beega Directions: Show your answers legibly, concisely and completely. Use separate el gnioss ow uoy Insteni ort t6 oloidev sheet of paper. 1. A car is diven 4.5 km due north before the driver remembers a forgotten package. The car is driven back 4.5 km in the opposite direction. What is the total distance covered by the car? What is the net displacement? 2. The marathon runner jogged 2 km along a straight shoreline, rested, then continued in the same direction for another 2 km. Find the total distance and displacement he covered. amt beagels = insmeosiqeib sto= b Speed, a scalar quantity refers to the rate of motion. It is the ratio of distance covered and the time of travel. In equation, do19 elgmse distance speed = elapsed time In symbol: v: evio Speed, therefore, refers to how fast the object is moving. It tells us that a fast- moving object has a high speed and covers a large distance in a short period of time while a slow-moving object that has a low speed covers a relatively small amount of distance in the same amount of time. Since speed is distance divided by time, speed is expressed in terms of the unit of distance and unit of time. The SI unit for distance is meter, and time is second. Thus, speed is expressed in meters per second or m/s. For vehicles, the standard unit for speed is kilometers per hour or km/h (kph). In other countries such as USA, they use miles per hour or mph as unit of speed. What about the speed of ship? Are they also expressed in kph or mph? (No. Ship's speed is expressed in nautical per hour or knots.) The average speed can be determined by dividing the total distance travelled by the total time of travel. In equation: Ave.speed = total distance total timo
Transcribed Image Text:What's More Activity 3.2: Solving Distance and Displacement Problems b le Ina lo wellimet uoyA boteoibni beega Directions: Show your answers legibly, concisely and completely. Use separate el gnioss ow uoy Insteni ort t6 oloidev sheet of paper. 1. A car is diven 4.5 km due north before the driver remembers a forgotten package. The car is driven back 4.5 km in the opposite direction. What is the total distance covered by the car? What is the net displacement? 2. The marathon runner jogged 2 km along a straight shoreline, rested, then continued in the same direction for another 2 km. Find the total distance and displacement he covered. amt beagels = insmeosiqeib sto= b Speed, a scalar quantity refers to the rate of motion. It is the ratio of distance covered and the time of travel. In equation, do19 elgmse distance speed = elapsed time In symbol: v: evio Speed, therefore, refers to how fast the object is moving. It tells us that a fast- moving object has a high speed and covers a large distance in a short period of time while a slow-moving object that has a low speed covers a relatively small amount of distance in the same amount of time. Since speed is distance divided by time, speed is expressed in terms of the unit of distance and unit of time. The SI unit for distance is meter, and time is second. Thus, speed is expressed in meters per second or m/s. For vehicles, the standard unit for speed is kilometers per hour or km/h (kph). In other countries such as USA, they use miles per hour or mph as unit of speed. What about the speed of ship? Are they also expressed in kph or mph? (No. Ship's speed is expressed in nautical per hour or knots.) The average speed can be determined by dividing the total distance travelled by the total time of travel. In equation: Ave.speed = total distance total timo
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