. In which of the following cases does a velocity and a positive acceleration? A in the (а) (b)-x direction increasing in speed. L (c) +x direction increasing in speed. (d)-x direction decreasing in speed. (e) +x direction decreasing in speed. -x direction at a constant 20 m/s.

. In which of the following cases does a velocity and a positive acceleration? A in the (а) (b)-x direction increasing in speed. L (c) +x direction increasing in speed. (d)-x direction decreasing in speed. (e) +x direction decreasing in speed. -x direction at a constant 20 m/s.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 19PE: Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s...

See similar textbooks

Related questions

Q: A train traveling at vo = 20.0 m/s begins to brake by applying a velocity-dependent instantaneous…

A: Write the expression for the velocity.

Q: The acceleration of a particle moving along a straight line is a = √s, where s is in meters. If its…

Q: a car travels along a straight line at a constant speed of 60 mi/h for a distance d and then another…

A: As shown, the car moves from A to B i.e. the first distance at constant speed of 60 mi/h. So,…

Q: A train is travelling forward along a straight track. It initially travels at 58.0 m/s for 1.1 km,…

A: Given : Initial Velocity = 58 m/s for distance 1.1 km = 1100 m Final velocity = 49 m/s…

Q: A car is driving 5 m/s and eventually comes to a stop. Which of the statements is correct? * O The…

A: A car is driving at = 5 m/sFinal state = rest Thus, final speed = 0 m/s

Q: A rock is thrown straight up with an initial velocity of 17.6 m/s. What time interval elapses…

A: Write the given values with the suitable variables. u=17.6 m/ss=0 mg=9.8 m/s2 Here, u, s, and g are…

Q: A stone dropped from a cliff hits the ground 3.00 s later. Assuming the acceleration due to gravity…

A: Given Time at which the stone hits ground =t= 3[s] Acceleration due to gravity=g= 9.81[m/s2] To find…

Q: car, starting from rest, accelerates in a straight-line path at a constant rate of 6.46 m/s2. How…

Q: A motorist drives north for 41.0 minutes at 67.0 km/h and then stops for 15.0 minutes. He then…

A: @ first 41 minutes, t1= 41min = 41/60 hours = 0.683333333 hours v1= 67 km/hr Therefore,…

Q: 11.13 The acceleration of a particle is defined by the relation a = A – 6ť, where A is a constant.…

Q: On Earth, how far will an object fall in 1 minute? Ignore air resistance. Assume the object is high…

Q: 4. Given km/hr to 20.0 km/hr in 6.00 seconds. A vehicle changes velocity from 80.0 Required: Find…

Q: If an object has an acceleration of -2.50m/s^2 and it’s initially moving at 3.0m/s find its velocity…

A: u=3 m/sa=-2.50 m/s2v=?t=0.5 s and 2 s

Q: 11. You start from your house at 10:00am, goes to the grocery shop and then to your friend's house.…

A: Part A. distance travelled by you will be: d = d1 + d2 d1 = distance from your house to shop = 5…

Q: A car accelerates along a straight road from rest to 60 km/h in 5.0 s. What is the magnitude of its…

A: Given: initial velocity u = 0 m/s final velocity v = 60 km/h = 16.67 m/s time t = 5.0 s

Q: A car initially traveling at 30.2 m/s undergoes a constant negative acceleration of magnitude 1.70…

A: Write the given values of this problem. u=30.2 m/sa=1.70 m/s2

Q: At constant acceleration, average and instantaneous velocities are equal. True False

Q: 17. Initial velocity = 5ms-', final velocity = 36 km h-1, acceleration = 1 ms-2. Find the distance.…

A: Given: Initial velocity(u) = 5m/s final velocity (v) =36 km/h=36×518=10m/s…

Q: The acceleration due to gravity on the moon is 1.67 m/s2. If a person can throw a stone 12.0 m…

A: Given,

Q: A Cessna aircraft has a minimum speed of 135 km/h to take off, aka the lift-off speed. What minimum…

A: Given data The initial velocity of the aircraft is given as u = 0 m/s. The final velocity of the…

Q: You leave your house and drive to your friend's house, where you stay a while. Then you come back…

A: Given Making a round trip from home to the friend's house and then coming back.

Q: A person takes a trip, driving with a constant speed of 91.0 km/h except for a 22.0 min rest stop.…

Q: An object is thrown straight up with an initial velocity of 13.4 m/s. What time interval elapses…

A: KINEMATICS

Q: 23. A motorcycle starts from rest and reaches a final speed v in time t. If the acceleration of the…

A: From the question it is given that initial speed of motorcycle = u = 0 m/s final speed of…

Q: A person runs with top velocity of 4.6 m/s to be able to catch a bus, which is stopped at the bus…

Q: The citizen leaves a city at 3:00 p.m. It travels at 36.0 m / s when the engine of its car stops.…

A: Given: Initial speed of car (u) = 36.0 m/s During first t1 =12 seconds the acceleration of car = a1.…

Q: 11. You start from your house at 10:00am, goes to your friend's house and then to the grocery shop.…

Q: Which car has northward acceleration? A) a car traveling north at a constant speed. B) a car…

A: The car have northward acceleration in the following cases: A car is traveling north and speeding…

Q: A car capable of a constant acceleration of 2.69 m/s is stopped at a traffic light. When the light…

Q: If the acceleration is constant, then

Q: A car accelerates uniformly from rest to a speed of 40 mi/h in 10 seconds find the distance the car…

A: Given: initial speed of car u = 0 m/sfinal speed of car v= 40 mi/hr = 17.88 m/stime t =10 sec

Q: The velocity of a particle is directed toward the east while the acceleration is directed northwest.…

A: Acceleration of particle is in North West direction which means it has both North & west…

Q: A train traveling due to East (+x-axis) with a velocity of v=30 m/s stops with a uniform…

Q: A train is traveling down a straight track at 35 m/s when the engineer applies the brakes, resulting…

A: Given data *The initial speed of the train is u = 35 m/s *The given acceleration is a = -1.0 m/s2…

Q: 30- 10 5 3 A 10 В 10 5 10 30 8 5+ 2- t D 10 10 F 10

Q: 9. A speedboat increases its speed uniformly from 20.0-m/s to 30.0-m/s in a distance of 200-m. Find…

A: Given that, Initial speed (u)= 20m/s Final speed (v)= 30m/s Distance (s)= 200m

Q: 3 For each of the following journeys find (a) the initial and final positions [b] the total…

A: (a) From the graph, we can see that the initial position is 60 km and final position is 0 km.…

Q: In which of the following cases does a car have a negative velocity and a positive acceleration? A…

A: Velocity and acceleration are vector quantities that is they both have magnitude as well as…

Q: A car is initially traveling at 60.0 km/h. The brakes are applied and the car stops over a distance…

Q: Which of the following is true both times? i. Velocity - Constant ; ii. Velocity - Constant : iii.…

Q: suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a…

A: The acceleration is states that the rate of change of velocity, if a driver slowing down to stop at…

Q: A car moves in a straight line at a speed of 56.0 km/h. A. How far will the car move in 4.00…

Q: A motorist traveling with a constant velocity of 30 m/s passes a school-crossing comer, where the…

Q: An object moves along a straight line with an acceleration of 2 m/s2. If its initial speed is 10…

A: Given that an object moves along a straight line. acceleration (a) =2 m/s2 initial speed (u) =10 m/s…

Q: A car moving in a straight line accelerates from rest at a rate of 6.00 m/s², for 5.00 s. It then…

Q: 9) Two objects move with initial velocity 28.00 m/s, final velocity 16.0 m/s, and constant…

A: (a) From kinematic equation, vf2-vi2=2ax [1] Thus, the acceleration will be, a=vf2-vi22xa=16…

Q: During landing, the speed of an aircraft decreases uniformly from 50 m/s to 10 m/s over a distance…

A: Given : vi = 50 m/s vf = 10 m/s s = 250 m

Q: An automobile accelerates uniformly from rest to 60 mi/hr in 28 s. Find its constant acceleration…

Concept explainers

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.

Question

100%

Why the answer is C ?

. In which of the following cases does a
velocity and a positive acceleration? A
in the
(а)
(b)-x direction increasing in speed. L
(c) +x direction increasing in speed.
(d)-x direction decreasing in speed.
(e) +x direction decreasing in speed.
-x direction at a constant 20 m/s.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

If a car is traveling eastward, can its acceleration be westward? Explain.
Give an example in which velocity is zero yet acceleration is not.
Is it possible for velocity to be constant while acceleration is not zero? Explain.
If an object is thrown straight up and air resistance is negligible, then its speed when it returns to the starting point is the same as when it was released. If air resistance were not negligible, how would its speed upon return compare with its initial speed? How would the maximum height to which it rises be affected?
Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed and time are classified). What is its average acceleration in m/s2 and in multiples of g (9.80 m/s2)?
Is it possible for speed to be constant while acceleration is not zero? Give an example of such a situation.
suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a traffic light. which statement concerning its acceleration must be correct-its acceleration is decreasing in magnitude as the car slows down-its acceleration is negative-its acceleration is positive-its acceleratio is 0 And why?
Suppose a car merges into freeway traffic on a 200-m-long ramp. If its initial velocity is 10.0 m/s and it accelerates at2.00 m/s2, how long does it take to travel the 200 m up the ramp? (Such information might be useful to a traffic engineer.)
If a car is traveling eastward, can its acceleration be westward?Explain.
An automobile accelerates uniformly from rest to 60 mi/hr in 28 s. Find its constant acceleration and its displacement during this time. [a] acceleration (in ft/s2) [b] displacement (in ft)
A person takes a trip, driving with a constant speed of 95.5 km/h except for a 22.0 min rest stop. If the person's average speed is 74.6 km/h, how much time is spent on the trip and how far does the person travel? h km
An object is initially moving at a rate of 15.5 m/s in the positive x-direction. What acceleration is required for the object to increase is speed to 26.1 m/s i over a distance of 11.9 m?