1. An object's motion is described by the following graph of position vs. time: a. What is the object doing between 2 s and 4 s? What is its velocity during 90 that interval? 72 54 b. What is the object doing between 6 s and 7 s? What is its velocity during 36 18 that interval? 1. 2 4 5. 8 10 Time (s) C. During which time interval(s) is the object at rest? During which time interval(s) is it moving at a constant velocity? During which time interval(s) is it accelerating?

1. An object's motion is described by the following graph of position vs. time: a. What is the object doing between 2 s and 4 s? What is its velocity during 90 that interval? 72 54 b. What is the object doing between 6 s and 7 s? What is its velocity during 36 18 that interval? 1. 2 4 5. 8 10 Time (s) C. During which time interval(s) is the object at rest? During which time interval(s) is it moving at a constant velocity? During which time interval(s) is it accelerating?

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 40P: An object is at x = 0 at t = 0 and moves along the x axis according to the velocitytime graph in...

See similar textbooks

Similar questions

A motorist drives for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130. Km in 2.00 h. (a) What is his total displacement? (b) What is his average velocity?
An unwary football player collides with a padded goalpost while running at a velocity of 7.50 m/s and comes to a full stop after compressing the padding and his body 0.350 m. (a) What is his deceleration? (b) How long does the collision last?
Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1.50 s later. (a) How far above the hiker is the rock when he can see it? (b) How much time does he have to move before the rock hits his head?
A swan on a lake gets airborne by flapping its wings and running on top of the water. (a) If the swan must reach a velocity of 6.00 m/s to take off and it accelerates from rest at an average rate of 0.35m/s2 , how far will it travel before becoming airborne? (b) How long does this take?
At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s2. (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense?
In Bosnia, the ultimate test of a young nuns courage used to be to jump off a 400-year-old bridge (destroyed in 1993; rebuilt in 2004) into the River Neretva, 23 m below the bridge. (a) How long did the jump last? (b) How fan was the jumper traveling upon impact with the river? (c) If the speed of sound in air is 340 m/s, how long after the jumper took off did a spectator on the bridge hear the splash?
An object is at x = 0 at t = 0 and moves along the x axis according to the velocitytime graph in Figure P2.40. (a) What is the objects acceleration between 0 and 4.0 s? (b) What is the objects acceleration between 4.0 s and 9.0 s? (c) What is the objects acceleration between 13.0 s and 18.0 s? (d) At what time(s) is the object moving with the lowest speed? (e) At what time is the object farthest from x = 0? (f) What is the final position x of the object at t = 18.0 s? (g) Through what total distance has the object moved between t = 0 and t = 18.0 s? Figure P2.40
An unwary football player collides with a padded goalpost while running at a velocity of 7.50 m/s and comes to a full stop after compressing the padding and his body 0.350 m. (a) What is his acceleration? (b) How long does the collision last?
An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station is 210 m long. (a) How long is the nose of the train in the station? (b) How fast is it going when the nose leaves the station? (c) If the train is 130 m long, when does the end of the train leave the station? (d) What is the velocity of the end of the train as it leaves?
At the end of a race a runner decelerates from a velocity of 8.70 m/s at a rate of 1.80 m/s2. A. How far in meters does she travel in the next 5.30 s? (Assume the deceleration of 1.80 m/s2is constant over the full 5.30 s.) B. What is her final velocity in m/s? C. Evaluate the result. Does it make sense? (Hint: what is the algebraic sign of the velocity, and what does it imply)
1. Consider the following v-t graph. a. At what time(s) is the object moving fastest? What is its speed at that time(s)? b. c. Draw a matching d-t graph. d. How far did the object move during the first 5 seconds? e. How far did the object move during the first 10 seconds? √(5) O 0 IT N + 6 4 1 T 00 O IN 2 IT -lot *LD O • [] 4 20 t(o)
1. Gabby went walking at a distance of 200 m in 20 s. Whar was the Gabby's average speed? a. Given: b. What to find? c. Formula: d. Solving: e. Final Answer: 2. What is Sandra's average velocity if her position changes from 25 west to 40m west during a 10s time interval? a. Given: b. What to find? c. Formula: d. Solving: e. Final Answer: 3. Find the average acceleration of a northbound subway train that slows down from 12m/s to 9.6m/s in 0.8s.