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Velocity and Acceleration
Page 4
Questions (230)
which of the following situations are impossible :
A) velocity negative, acceleration positive B) velocity positive ,
2 answers
asked by
jessica
749 views
A dog running in an open field has components of velocity vx = 2.5 m/s and vy = -1.3 m/s at time t1 = 10.7 s . For the time
2 answers
asked by
Noora
717 views
A stock car starts from rest at time t=0 with velocity (m/s) increasing for 4.0 s , according to the function Vx=1.4t2+1.1t.
a)
2 answers
asked by
Kay
693 views
a train is moving at a speed of 5m/s. a person standing on the train throws a ball upwards at 10m/s. at the maximum height of
2 answers
asked by
suvalakshmi
676 views
A particle is traveling counterclockwise in a circle of radius
r = 2.85 m. At some instant in time, the particle is located by
1 answer
asked by
Anonymous
666 views
A light plane attains an airspeed of 491 km/h. The pilot sets out for a destination 785 km due north but discovers that the
1 answer
asked by
Nicole
681 views
A spacecraft is traveling with a velocity of
v0x = 5690 m/s along the +x direction. Two engines are turned on for a time of 845
1 answer
asked by
Kaley
634 views
A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s.
Find the truck's original speed.
3 answers
asked by
J
612 views
Consider a car making a turn at a constant speed
a) is the net force on the car zero? Why? b) Is the velocity of the car
1 answer
asked by
Sarah
635 views
A car is travelling on a highway
Can it have a negative velocity & a positive acceleration at the same time? Can the car change d
2 answers
asked by
-Untamed-
602 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
2 answers
asked by
Adriana
615 views
does an object speed up or slow down when:
1. its velocity is positive (right) and its acceleration is positive (right)? I said
2 answers
asked by
Matt
622 views
As soon as a traffic light turns green, a car speeds up from rest to 46.0 mi/h with constant acceleration 8.50 mi/h-s. In the
1 answer
asked by
chuikia
620 views
A car is moving down the road with a constant velocity of 20m/s. The car passes by a big billboard. There is a police officer (
2 answers
asked by
abigail
606 views
a car manufacture advertise that a car goes "from zero to sixty in 8 seconds" is a description of:
a) average speed b)
3 answers
asked by
Tammy
593 views
a red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis.
3 answers
asked by
Sean
585 views
Five motorboats are being tested to see which reaches the highest velocity in the same amount of time. After graphing the
2 answers
asked by
trinnity
590 views
A snowmobile is originally at the point with position vector 31.5 m at 95.0° counterclockwise from the x axis, moving with
2 answers
asked by
hhh
569 views
A plane cruising at 251 m/s accelerates at25 m/s2 for 9 s.What is its final velocity?Answer in units of m/s
3 answers
asked by
nathan
541 views
Cheetahs can sustain speeds of 25 m/s over short distances. One of their prey is Thomson's gazelle, with top speed about 22 m/s.
2 answers
asked by
blake
556 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
2 answers
asked by
WR
560 views
A body travels from rest with acceleration 8m/s(squared)Find its velocity when it has covered a distance of 100 meter?
5 answers
asked by
Ruth
526 views
Consult Interactive Solution 2.22 before beginning this problem. A car is traveling along a straight road at a velocity of +38.8
2 answers
asked by
trish
547 views
The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table.
2 answers
asked by
Kendall
537 views
A particle moving at a velocity of 4.8 m/s in the positive x direction is given an acceleration of 3.4 m/s2 in the positive y
2 answers
asked by
Holly
525 views
It has two flags, each exactly 25.4 mm long, with the midpoints of the flags separated by 162 mm. The first flag interrupts the
2 answers
asked by
Anonymous
502 views
In a relay race the second runner does not start from rest. it covers 100 m in 10 sec, finishing with maximum velocity of 12
2 answers
asked by
ABCD
535 views
For beginner parachutists, the terminal velocity must be less than 5.00 m/s, and the parachutes used have a k-value that is
7 answers
asked by
Sydney
512 views
A car with good tires on a dry road can decelerate at about 5 m/s^2 when breaking. Suppose a car is initially traveling at 65
2 answers
asked by
Tammy
513 views
Help me out! Thanks! You guys have really helped me before.
Question 1 What does the law of inertia say about the velocity and
2 answers
asked by
Chris
525 views
(a) In 2009, Usain Bolt ran the last 100 meters of the 150-meter race in 8.70 seconds. What is Usain
Bolt’s speed? (b) The
2 answers
asked by
tom
531 views
Velocity and Acceleration Quick Check
2 of 52 of 5 Items Question Use the graph of velocity vs. time for an object to answer the
1 answer
asked anonymously
111 views
if the acceleration of a truck over a given time interval is zero, how does the instaneous velocity of that truck at any instant
2 answers
asked by
Anonymous
503 views
It is observed that rider A closes the 48 gap in a time of 6 seconds (a=ft/s^2). a) What speed was rider A moving while located
1 answer
asked by
Joey
494 views
A plane is flying in the horizontal plane. At time t1= 0 s with the components of its velocity are vx= 100 m/s and vy= 120 m/s.
2 answers
asked by
Thank You
506 views
the velocity of a particle moving along the x-axis at any time t>=0 is given by
v(t)=cos(pi t)-t(7-2pi) find the acceleration at
4 answers
asked by
julia
473 views
a car traveling in a straight line has a initial velocity of 12.0 m/s.zoe steps on the gas and accelerates at at rate of 2
2 answers
asked by
michael
493 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
1 answer
asked by
sarah
499 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
1 answer
asked by
kyle
500 views
A herd of wildebeests led by Roger is charging down the hall on the way to lunch. They start out at 10 m/s and accelerate at a
4 answers
asked by
Alison
470 views
Consider a 4.6 kilogram object moves from the origin always to the right (call that x-axis). Its speed increases uniformly
1 answer
asked by
PhysicsStudents
483 views
if a ball is released from a certain height.The velocity-time graph which represents the motion of the ball as it bounces
1 answer
asked by
Jumaimah
484 views
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average
1 answer
asked by
Bobby
460 views
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average
1 answer
asked by
Bobby
458 views
An airplane lands with a velocity of 100m.s/1.The maximum rate at which it can slow down is 5,0m.s/2.What is the minimum time
1 answer
asked by
Nhlanhla
452 views
What is the maximum speed at which a car could be moving and not hit a barrier 35.0 m ahead if the average acceleration during
1 answer
asked by
Sarah
453 views
an object's acceleration is given by the function a= 2/v^2, determine an expression for the velocity of the object as a function
1 answer
asked by
Kiana
444 views
Suppose the velocity of a car is 10 m/s at t = 0 s, and is 20 m/s at t = 30 s. Which of the following must be true?
The car had a
1 answer
asked by
Mike
452 views
The acceleration of a certain rocket is given by a(t)=bt where b is positive constant compute the the average velocity of the
3 answers
asked by
Kelly
464 views
Find the velocity, v(t), for an object moving along the x-axis if the acceleration, a(t), is a(t) = cos(t) - sin(t) and v(0) =
1 answer
asked by
Amitesh Bharati
462 views
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Parent Categories (15)
Calculus
Circular motion
Differentiation and Integration
Force and Motion
Forces and Motion
Kinematics
Measurement and Calculation
Mechanics
Motion
Motion / Kinematics
Motion and Forces
Motion and Gravity
Motion and Speed
Particle motion
Physics