A car is initially at rest on a straight road. The graph shows the speed of the car as a function of time. v (m/s) 12 11 10 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 t(s) What is the speed of the car at t=7 s? Submit Answer Tries 0/12 How much distance did the car cover in the first 9 seconds? Submit Answer Tries 0/12 Determine the distance covered by the car between t=10 s and t=13 s? Submit Answer Tries 0/12 What is the average speed of the car between t=4 s and t=8 s?

A car is initially at rest on a straight road. The graph shows the speed of the car as a function of time. v (m/s) 12 11 10 9 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 t(s) What is the speed of the car at t=7 s? Submit Answer Tries 0/12 How much distance did the car cover in the first 9 seconds? Submit Answer Tries 0/12 Determine the distance covered by the car between t=10 s and t=13 s? Submit Answer Tries 0/12 What is the average speed of the car between t=4 s and t=8 s?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 6OQ: A pebble is dropped from rest from the top of a tall cliff and falls 4.9 m after 1.0 s has elapsed....

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A pebble is dropped from rest from the top of a tall cliff and falls 4.9 m after 1.0 s has elapsed. How much farther does it drop in the next 2.0 s? (a) 9.8 m (b) 19.6 m (c) 39 m (d) 44 m (e) none of the above
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
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.
A parachutist jumps out of an airplane and accelerates with gravity to a maximum velocity of 68.6 m/s in 7.00 seconds. She then pulls the parachute cord and after a 3.3-second constant deceleration, descends at 10.5 m/s for 9.2∗1019.2∗101seconds, reaching the ground. From what height did the parachutist jump? answer in meters. (assume g = 9.8 ?/?2m/s2 )
A woman swims the length of a 120-m pool and back again (one lap) in 90 s with a constant speed. 3.) What is her average speed for one lap? a. 0 b. 1.33 m/s c. 2.67 m/s d. 0.67 m/s
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A woman drives a car from one city to another with different constant speeds along the trip. She drives at a speed of 70.0 km/h for 20.0 min, 65.0 km/h for 15.0 min, makes a stop for 50.0 min, then continues at 40.0 km/h for 30.0 min, at which point she reaches her destination. (a) What is the total distance between her starting point and destination (in km)?km(b) What is the average speed for the entire trip (in units of km/h)?km/h
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