menu
bartleby
search
close search
Hit Return to see all results

(b) The graph below plots the velocity versus time for an object, different from the one in part (a), moving in one dimension along the x direction.Vx (m/s)102t (s)34What is the speed (magnitude of velocity) of the object at t-2.5 s?6m/sWhat direction is the object moving along that time interval?ОнхThe object is not movingwhat is the acceleration of the object at t = 2.5 s? (Indicate the direction with the sign of your answer.)3.2Think about the definition of acceleration. How is it related to velocity and change in velocity? While the question really wants the instantaneous acceleration, notice that the velocity graph is a straight line from 1 s to 4 s. How can yourelate this to average acceleration? m/sIs the speed increasing, decreasing or constant at that time?increasingdecreasingconstant

Question

Can someone please help me understand what I'm doing wrong on this one?

 

(b) The graph below plots the velocity versus time for an object, different from the one in part (a), moving in one dimension along the x direction.
Vx (m/s)
10
2
t (s)
3
4
What is the speed (magnitude of velocity) of the object at t-2.5 s?
6
m/s
What direction is the object moving along that time interval?
Онх
The object is not moving
what is the acceleration of the object at t = 2.5 s? (Indicate the direction with the sign of your answer.)
3.2
Think about the definition of acceleration. How is it related to velocity and change in velocity? While the question really wants the instantaneous acceleration, notice that the velocity graph is a straight line from 1 s to 4 s. How can you
relate this to average acceleration? m/s
Is the speed increasing, decreasing or constant at that time?
increasing
decreasing
constant
help_outline

Image Transcriptionclose

(b) The graph below plots the velocity versus time for an object, different from the one in part (a), moving in one dimension along the x direction. Vx (m/s) 10 2 t (s) 3 4 What is the speed (magnitude of velocity) of the object at t-2.5 s? 6 m/s What direction is the object moving along that time interval? Онх The object is not moving what is the acceleration of the object at t = 2.5 s? (Indicate the direction with the sign of your answer.) 3.2 Think about the definition of acceleration. How is it related to velocity and change in velocity? While the question really wants the instantaneous acceleration, notice that the velocity graph is a straight line from 1 s to 4 s. How can you relate this to average acceleration? m/s Is the speed increasing, decreasing or constant at that time? increasing decreasing constant

fullscreen
check_circleAnswer
Step 1

Acceleration is the rate of change of velocity. It is equal to the slope of the graph about the point t = 2.5 s.

fullscreen
Step 2

From the graph, the slope about the point t = 2.5 s is,

fullscreen
Step 3

Negative sign indicate...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Our solutions are written by experts, many with advanced degrees, and available 24/7

See Solution
Tagged in

Science

Physics

Kinematics

Related Physics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: 40. Water flowing through a garden hose of diameter 2.74 cm fills a 25-L bucket in 1.50 min. (a) Wha...

A: Given,

question_answer

Q: Figure a is a partial graph of the position function x(t) for a simple harmonic oscillator with an a...

A: From the given graph (a), y-axis: 1 division = (7.50/5) = 1.50 cmFrom graph (b), y-axis: 1 division ...

question_answer

Q: Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam...

A: The ray diagram of refraction is given below in which light makes angle with normal.

question_answer

Q: In Figure (a) particles 1 and 2 have charge 38.0 μC each and are held at separation distance d = 4.7...

A: Given,

question_answer

Q: In unit-vector notation, what is the torque about the origin on a jar of jalapeno peppers located at...

A: a)The expression for the torque is,

question_answer

Q: In the figure particles 1 and 2 of charge q1 = q2 = +22.40 × 10-19 C are on a y axis at distance d =...

A: Let, F1 and F2 be the force at the location of charge 3, due to charge 1 and 2 respectively.Let, x b...

question_answer

Q: A circular coil has a 10.4 cm radius and consists of 23.0 closely wound turns of wire. An externally...

A: (a)The equation for the magnetic flux is given by,

question_answer

Q: Suppose a horse leans against a wall as in (see attached). Calculate the force exerted on the wall a...

A: Given,

question_answer

Q: a man weighs 600N while on the surface of earth. if he is transported to the planet mythos , which h...

A: Write the expression for the gravitational force,

Sorry about that. What wasn’t helpful?