Question

Q1) What is the main difference in position-time graphs between moving at constant speed and moving...

Q1) What is the main difference in position-time graphs between moving at constant speed and moving with changing speed?

Q2) What is the main difference in velocity-time graphs between moving at constant speed and moving with changing speed?

Q3) What is the main difference in acceleration-time graphs between moving at constant speed and moving with changing speed?

Q4) What is the sign of the acceleration when speeding up and moving in the positive direction?

Q5) What is the sign of the acceleration when speeding up and moving in the negative direction?

Q6) What is the sign of the acceleration when slowing down while moving in the positive direction?

Q7) What is the sign of the acceleration when slowing down while moving in the negative direction?

Homework Answers

Answer #1

Q1] For the constant speed, the position-time graph gives a straight line with a constant slope (positive or negative) whereas for a changing speed case, the position-time graph gives a curve for the motion instead of a straight line.

Q2] For the constant speed, the velocity-time graph gives a horizontal line of zero slope whereas for a changing speed case, the graph is a straight line with constant slope (acceleration or deceleration).

Q3] When the object is moving with constant speed, the acceleration is zero and so the acceleration vs time graph will be along x axis whereas for the changing speed case, the graph will be a horizontal line.

Q4] When speeding up, the velocity increases with time and so acceleration is positive in nature.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Match the cases with the correct answer. Remember to use our sign convention from class (which...
Match the cases with the correct answer. Remember to use our sign convention from class (which way is positive and which way is negative)! HINT: Draw a picture for each situation, paying close attention to the car's tire 1) A car is speeding up to the left. Assume that the tires are not slipping. In which direction are the tires' angular velocity pointing? 2)A car is slowing down to the left. Assume that the tires are not slipping. In which...
Match numbers with alphabets: 1. A car is speeding up to the left. Assume that the...
Match numbers with alphabets: 1. A car is speeding up to the left. Assume that the tires are not slipping. In which direction are the tires' angular velocity pointing? 2. A car is slowing down to the left. Assume that the tires are not slipping. In which direction are the tires' angular velocity pointing? 3. A car is speeding up to the left. Assume that the tires are not slipping. In which direction are the tires' angular acceleration pointing? 4....
Explain the difference between a position vs time, velocity vs time, and acceleration vs time graphs...
Explain the difference between a position vs time, velocity vs time, and acceleration vs time graphs for simple harmonic motion.
The function s(t) describes the position of a particle moving along a coordinate line, where s...
The function s(t) describes the position of a particle moving along a coordinate line, where s is in feet and t is in seconds. s(t) = 3t2 - 6t +3 A) Find the anti-derivative of the velocity function and acceleration function in order to determine the position function. To find the constant after integration use the fact that s(0)=1. B) Find when the particle is speeding up and slowing down. C) Find the total distance from time 0 to time...
1. The position of a bird in the xy-plane is given by ?⃗ = (3.0?−∝ ?)?̂+...
1. The position of a bird in the xy-plane is given by ?⃗ = (3.0?−∝ ?)?̂+ ?? 2 ?̂where ∝= 1.6 ?/? and ? = 0.8 ?/? 2 . a) What are Vx(t) and Vy(t), x and y components of the velocity of the bird as a function of time? b) What is the bird’s net velocity at 3.0 s (magnitude and direction)? c) What are ax(t) and ay(t), x and y components of the acceleration of the bird as...
3. The velocity function of a particle is moving on a coordinate line is given by...
3. The velocity function of a particle is moving on a coordinate line is given by ?(?) = 6?^2 − 42? + 60 where ? is in meters per seconds and ? is in seconds. a) When is the particle at rest? b) When does the particle have positive velocity? c) When does the particle have negative acceleration? d) When is the particle speeding up? e) Sketch the position-time graph of the particle and the acceleration-time graph of the particle...
Kinematics Examples: A) A cat has a time dependent position given by x(t) = 4.50 m...
Kinematics Examples: A) A cat has a time dependent position given by x(t) = 4.50 m + (3.20 m/s^2) t^2 - (1.75 m/s^3) t^3 Find Velocity as function of time? Find acceleration as a function of time? Find the position velocity, and acceleration of the cat at t = 3.00 s? Find average velocity and average acceleration for the 1st 3.00s? Find the position of the cat when it first changes direction? B) A robot starts at X0 = 4.00m...
A particle moves according to a law of motion , , where is measured in seconds...
A particle moves according to a law of motion , , where is measured in seconds and in feet. Find the velocity at time . What is the velocity after second? When is the particle at rest? When is the particle moving in the positive direction? Find the total distance traveled during the first seconds. Draw a diagram like Figure 2 to illustrate the motion of the particle. Find the acceleration at time and after second. Graph Icon Graph the...
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed...
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed of 0.619 c. Han Solo is shooting at the imperial fighters with his newly installed proton cannon purchased at the MSU Surplus Store for $20.00 plus 6.00% TAX. The cannon emits protons at a speed of 0.801 c with respect to the ship. A. What is the velocity of the protons in the resting frame of the movie audience in terms of the speed...
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually...
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.113 rad/s2. After making 2870 revolutions, its angular speed is 139 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up?