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1. A woman leaves her house to walk her dog. They stop a few times along a straight path. They walk a distance of 1.2 km [E] from their house in 24 min. In another 24 min, they turn around and take the same path home. Give your answers to the following questions in kilometres per hour. A A (a) Determine the average speed of the woman and her dog for the entire route. [ans: 3.0 km/h] (b) Calculate the average velocity from their house to the farthest position from the house. [ans: 3.0 km/h (E]] (c) Calculate the average velocity for the entire route. [ans: 0.0 km/h] (d) Are your answers for (b) and (C) different? Explain why or why not. or abou to crosS

1. A woman leaves her house to walk her dog. They stop a few times along a straight path. They walk a distance of 1.2 km [E] from their house in 24 min. In another 24 min, they turn around and take the same path home. Give your answers to the following questions in kilometres per hour. A A (a) Determine the average speed of the woman and her dog for the entire route. [ans: 3.0 km/h] (b) Calculate the average velocity from their house to the farthest position from the house. [ans: 3.0 km/h (E]] (c) Calculate the average velocity for the entire route. [ans: 0.0 km/h] (d) Are your answers for (b) and (C) different? Explain why or why not. or abou to crosS

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Please answer question and just send me the paper solutions asap dont type the answer question 2 ASAP please faster and only use these equations and use 9.81 if needed
SPH4U-01 COHORT A Wednesday, Equations and Constants F = µFn sinA sinB sinC Fnet a2 = b2 + c2 - 2bccosA = ma a b. V2 = V1 + aAt Ad Ad = vAt + %aAt Ad = v2At - ½aAt? Vav Ad = %(v1 + v2)At (v2) = (v1) + 2aAd v2 472r %3D g = 9.81 %3D %3D T2 = 47?rf2 a. W = FAd W = AE 1 KE = - PE = mgAy ту? 2. F = kx 1 Elastic Energy= kx2 2. FAt = Ap au = d GMm тearth = 5.972 x 1024kg mmoon = 7.348 x 1022kg Fg Nm2 G = 6.67x10-11 kg2 6378 km Tmoon 1737 m kq192 Fe = 1.67 x 10-27kg 9.11 x 10-31kg mproton melectron |3D Nm2 Telectron/proton = ±1.60x10-19C
Transcribed Image Text:SPH4U-01 COHORT A Wednesday, Equations and Constants F = µFn sinA sinB sinC Fnet a2 = b2 + c2 - 2bccosA = ma a b. V2 = V1 + aAt Ad Ad = vAt + %aAt Ad = v2At - ½aAt? Vav Ad = %(v1 + v2)At (v2) = (v1) + 2aAd v2 472r %3D g = 9.81 %3D %3D T2 = 47?rf2 a. W = FAd W = AE 1 KE = - PE = mgAy ту? 2. F = kx 1 Elastic Energy= kx2 2. FAt = Ap au = d GMm тearth = 5.972 x 1024kg mmoon = 7.348 x 1022kg Fg Nm2 G = 6.67x10-11 kg2 6378 km Tmoon 1737 m kq192 Fe = 1.67 x 10-27kg 9.11 x 10-31kg mproton melectron |3D Nm2 Telectron/proton = ±1.60x10-19C
1. A woman leaves her house to walk her dog. They stop a few times along a straight path. They walk a distance of 1.2 km [E] from their house in 24 min. In another 24 min, they turn around and take the same path home. Give your answers to the following questions in kilometres per hour. A A (a) Determine the average speed of the woman and her dog for the entire route. [ans: 3.0 km/h] (b) Calculate the average velocity from their house to the farthest position from the house. [ans: 3.0 km/h (E]] (c) Calculate the average velocity for the entire route. [ans: 0.0 km/h] (d) Are your answers for (b) and (C) different? Explain why or why not. 2. A bus driver begins a descent down a steep hill and suddenly sees a deer about to cross the road. He applies the brakes. During the bus driver's 0.32 s reaction time, the bus maintains a constant velocity of 27 m/s [forward). Determine the displacement of the bus during the time the driver takes to react. (ans: 8.6 m (forward] 3. Drivers at the Daytona 500 Speedway in Florida must complete 200 laps of a track that is 4.02 km long. Calculate the average speed, in kilometres per hour, of a driver who completes 200 laps in 6.69 h. fans: 1.20 x 10 km/h] 4. A student in a mall walks 140 m (E] in 55 s to go to his favourite store. The store is not open yet, so he walks 45 m (W] in 21 s to go to another store. Calculate his (a) average speed [ans: 2.4 m/s) (b) average velocity [ans: 1.2 m/s (E]] 5. A delivery truck heads directly south for 62 km, stopping for an insignificant amount of time, and then travels 78 km directly north. The average speed for the entire trip
Transcribed Image Text:1. A woman leaves her house to walk her dog. They stop a few times along a straight path. They walk a distance of 1.2 km [E] from their house in 24 min. In another 24 min, they turn around and take the same path home. Give your answers to the following questions in kilometres per hour. A A (a) Determine the average speed of the woman and her dog for the entire route. [ans: 3.0 km/h] (b) Calculate the average velocity from their house to the farthest position from the house. [ans: 3.0 km/h (E]] (c) Calculate the average velocity for the entire route. [ans: 0.0 km/h] (d) Are your answers for (b) and (C) different? Explain why or why not. 2. A bus driver begins a descent down a steep hill and suddenly sees a deer about to cross the road. He applies the brakes. During the bus driver's 0.32 s reaction time, the bus maintains a constant velocity of 27 m/s [forward). Determine the displacement of the bus during the time the driver takes to react. (ans: 8.6 m (forward] 3. Drivers at the Daytona 500 Speedway in Florida must complete 200 laps of a track that is 4.02 km long. Calculate the average speed, in kilometres per hour, of a driver who completes 200 laps in 6.69 h. fans: 1.20 x 10 km/h] 4. A student in a mall walks 140 m (E] in 55 s to go to his favourite store. The store is not open yet, so he walks 45 m (W] in 21 s to go to another store. Calculate his (a) average speed [ans: 2.4 m/s) (b) average velocity [ans: 1.2 m/s (E]] 5. A delivery truck heads directly south for 62 km, stopping for an insignificant amount of time, and then travels 78 km directly north. The average speed for the entire trip
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