A train accelerates from 100 m/s west to 170 m/s west in 10 seconds. What is the acceleration of the bus? a = Vf – Vi time 7 m/s2 7 m/s2 80 m/s2 280 m/s2 A biker rides 80 meters in 12 seconds. His average speed is ___. (s=d/t) 15 m/s 67 m/s 58 m/s 92 m/s According to Newton’s 3rdLaw of Motion, for every action, there is ___. Work being done An equal and opposite reaction An unbalanced force on the reaction. An equal reaction continuing the direction of motion

A train accelerates from 100 m/s west to 170 m/s west in 10 seconds. What is the acceleration of the bus? a = Vf – Vi time 7 m/s2 7 m/s2 80 m/s2 280 m/s2 A biker rides 80 meters in 12 seconds. His average speed is _. (s=d/t) 15 m/s 67 m/s 58 m/s 92 m/s According to Newton’s 3rdLaw of Motion, for every action, there is _. Work being done An equal and opposite reaction An unbalanced force on the reaction. An equal reaction continuing the direction of motion

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter2: Motion

Section: Chapter Questions

Problem 14E: A car travels on a straight, level road. (a) Starting from rest, the car is going 44 ft/s (30 mi/h)...

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A car travels on a straight, level road. (a) Starting from rest, the car is going 44 ft/s (30 mi/h) at the end of 5.0 s. What is the cars average acceleration in ft/s2? (b) In 4.0 more seconds, the car is going 88 ft/s (60 mi/h). What is the cars average acceleration for this time period? (c) The car then slows to 66 ft/s (45 mi/h) in 3.0 s. What is the average acceleration for this time period? (d) What is the overall average acceleration for the total time? (Note these convenient British unit conversions: 60 mi/h = 88 ft/s, 45 mi/h = 66 ft/s, and 30 mi/h = 44 ft/s.)
Bill runs at a steady pace of 5.00 m/s. How long will it take Bill to run 1.00 mile? (N.B. 1 mile =5280 feet). Answer in seconds.
An unidentified flying object (UFO) is observed to travel a total distance of 42000 m, starting and ending at rest, over a duration of 2.07 s. Assuming the UFO accelerated at a constant rate to the midpoint of its journey and then decelerated at a constant rate the rest of the way, what was the magnitude of its acceleration? Express your answer in g s , where 1 g = 9.81 m/s^2. 39,207 g s 19,604 g s 3,997 g s 1,998 g s
You are driving 65.0 miles/hour and you see a police car, so you slow down to 42.5 miles/hour. It takes you 3 seconds to do this. What is your deceleration? (I asked this one before, but someone plugged in -22.5 miles/hr x 2.237 m/s / 1 mile an hour which I didn't understand)
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. A Tesla can accelerate from 0-60 MPH in 2.8 seconds, yielding an average acceleration of 21.4 MPH/s. c. Convert this acceleration into m/s (meters/sec3). d. If 1.0 furlong = 660 ft and 1.0 fortnight = 2 weeks, convert this acceleration into furlongs/fortnight squared. %3D
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.2500.250 miles (1 mi = 1609 m)?
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At an air show, a jet plane has velocity components vx =695km/h and vy =415km/h at time 4.35 s and vx =938km/h and vy =365km/h at time 7.52 s. Please answer A,B,C,D Thank you.
A car enters the freeway with a speed of 8 m/s and accelerates uniformly for 3.5 km in 2.5 min. How fast is the car moving after this time?
A stone is dropped from the deck of a bridge. The sound of the splash reached the deck 3 secs later. The speed of sound is 342 m/s in still air. Which of the following gives the time the stone travels from the deck to the water surface before the splash? A) 0.288 sec B) 8.821 sec C) 4.181 sec D) 3.188 sec E) 1.881 sec F) 2.881 sec