1. An object moves along the x-axis according to the law s= + 2t2 – 1, 16 where s is in meters, t is in seconds. a. Find time t when the acceleration is zero; b. Calculate the object's velocity at this instant.
1. An object moves along the x-axis according to the law s= + 2t2 – 1, 16 where s is in meters, t is in seconds. a. Find time t when the acceleration is zero; b. Calculate the object's velocity at this instant.
Related questions
Question
100%
![First, we determine the position of the partic
x(t1) = x(2) = 2(2²) + 4 =
x(t2) = x(4) = 2(4²) + 4 = 36m
Compute the average speed in the given time interval:
x(t2) - x(t1)
36 12 24
Vave
t2 -t1
4 2
12 m/s
2
Evaluate
Time Duration: 1 hour)
Direction: Solve the following problems. Place your solution in a short bond
рaper.
1. An object moves along the x-axis according to the law s =
-는+2t2-1,
16
where s is in meters, t is in seconds.
a. Find time t when the acceleration is zero;
b. Calculate the object's velocity at this instant.
t3
2. The motion of a particle is given by the equation s = 2t*-+ 2t? where s is
in feet and t is in seconds. Compute the values ofv and a whent 2 sec.
16
3. A particles moves in a straight line according to the law s = t3 - 40t where
s is in feet and t is in seconds.
a. When t 5 sec, compute the velocity?
b. Find the average velocity during the fourth second?
C. When the particle again comes to rest, what is its acceleration?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7093f188-e1a3-4f05-b9dd-8d0ef74693c8%2F97aa099f-decf-487b-9828-25e3b662fad9%2Fkwdzteb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:First, we determine the position of the partic
x(t1) = x(2) = 2(2²) + 4 =
x(t2) = x(4) = 2(4²) + 4 = 36m
Compute the average speed in the given time interval:
x(t2) - x(t1)
36 12 24
Vave
t2 -t1
4 2
12 m/s
2
Evaluate
Time Duration: 1 hour)
Direction: Solve the following problems. Place your solution in a short bond
рaper.
1. An object moves along the x-axis according to the law s =
-는+2t2-1,
16
where s is in meters, t is in seconds.
a. Find time t when the acceleration is zero;
b. Calculate the object's velocity at this instant.
t3
2. The motion of a particle is given by the equation s = 2t*-+ 2t? where s is
in feet and t is in seconds. Compute the values ofv and a whent 2 sec.
16
3. A particles moves in a straight line according to the law s = t3 - 40t where
s is in feet and t is in seconds.
a. When t 5 sec, compute the velocity?
b. Find the average velocity during the fourth second?
C. When the particle again comes to rest, what is its acceleration?
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)