Consider the velocity vs. time graph shown below of a person in an elevator. Suppose the elevator is initially at rest. It then speeds up for 3seconds, maintains that velocity for 15seconds, then slows down for 5seconds until it stops. Find the instantaneous velocity at t=10s and t=23s.
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Consider the velocity vs. time graph shown below of a person in
an elevator. Suppose the...
A position-time graph is shown below: Position vs. Time 15 Position (cm) -> Time (seconds) ->...
A position-time graph is shown below: Position vs. Time 15 Position (cm) -> Time (seconds) -> Which statement accurately describes the motion of the object in the graph above over 10 seconds? The object moves forward at 1 cm/s, stops, and then continues at the same velocity. The object moves forward at 1 cm/s, stops, and then increases velocity to 2 cm/s. The object is at rest for 4 seconds and then moves forward for 4 seconds at 1 cm/s....
A machinist turns on the power on to a grinding wheel at time t = 0s....
A machinist turns on the power on to a grinding wheel at time t = 0s. The wheel accelerates uniformly from rest for 10s and reaches the operating angular speed of 58 rad/s. The wheel is run at that angular velocity for 30s, and then power is shut off. The wheel slows down uniformly at 1.4 rad/s^2 until the wheel stops. What is the total number of revolutions made by the wheel in this situation ? A machinist turns on...
Part 2: Velocity vs. Time 1. For each velocity vs. time graph (Graph 3 and 4), describe how you w...
Part 2: Velocity vs. Time 1. For each velocity vs. time graph (Graph 3 and 4), describe how you would walk in order to replicate the 1-D motion graph. Use words such as away, toward, at rest, speeding up, slowing down, constant speed. Be specific with your time periods. 2. For each velocity vs. time graph, create the corresponding position and acceleration versus time graphs. Construct your graph on a computer program such as Microsoft ExcelB. If you do not...
Sketch a velocity vs time graph of a car that slows down uniformly. Describe what the...
Sketch a velocity vs time graph of a car that slows down uniformly. Describe what the graph represents.
For this page: The person's velocity vs. time graph is given to be: 4 Velocity (m/s)...
For this page: The person's velocity vs. time graph is given to be: 4 Velocity (m/s) 0.50 m/s 2.0 4.0 Time (s) -0.5 m/s the position vs. time graph. Include units, labels, and numerical values on the graph. B. What is the person's average velocity? What is the person's average speed? D What is the person's instantaneous acceleration att3.0 s? , what is the person's instantaneous velocity at t = 1.0 s? PHY 201 Lab Manual
Please help with this Kinematics question! Position and time graphs. Velocity vs. time graph. Consider this...
Please help with this Kinematics question! Position and time
graphs. Velocity vs. time graph.
Consider this position vs. does the corresponding velocity vs. time graph look like? 1. time graph. What (a) Sketch your prediction below * Now reproduce the position graph by walking, and see if the velocity graph comes out the way you expect. 10 t (seconds) Velocity Graph Prediction Velocity Graph Result (m/s) o (m/s) 0 10 6 10 t (seconds) t (seconds) 2. Here's a velocity...
Please help with this Kinematics question! Velocity vs. time graph. 3. Consider this velocity vs. time...
Please help with this Kinematics question! Velocity vs. time
graph.
3. Consider this velocity vs. time graph. (a)* At what times does the obect change direction? (m's o How do you know? 10 -1 t (seconds) (b) What is the object doing at t-6 s and -9 s. (Hint: It's not changing direction.) (c) In which direction is the object moving at-7s? Explain. (d) At what time is the object farthest from its initial position? How do you know? (e)"...
Please help me solve questions 6 6) A 50 kg person on a scale is in an elevator. The elevator is at rest for 3 seconds. Then it takes 0.8 seconds to accelerate to 6 m/s moving down. It moves el...
Please help me solve questions 6
6) A 50 kg person on a scale is in an elevator. The elevator is at rest for 3 seconds. Then it takes 0.8 seconds to accelerate to 6 m/s moving down. It moves elevator then takes 1.2 seconds to slow to a stop. at this speed for 5 seconds. The 6a) Draw an FBD of the situation during both of the accelerations. 42 What is the acceleration of the person during the first...
2. For each of the following motions draw a motion diagram, a position-vs-time graph, and a...
2. For each of the following motions draw a motion diagram, a position-vs-time graph, and a velocity-vs-time graph. a. A car starts from rest, steadily speeds up to 40 mph in 15s, moves at a constant speed for 30s, b. then comes to a halt in 5s A rock is dropped from a bridge and steadily speeds up as it falls. It is moving at 30 m/s when it hits the ground 3s later. Think carefully about the signs.
e. Both its angular momentum and its angular velocity remain constant. 19. The graph below represents...
e. Both its angular momentum and its angular velocity remain constant. 19. The graph below represents the angular velocity of a rigid object. Which statement is true regarding the time interval (2-3) s? w (rad/s) 8 4 0 t(s) 2 4 6 8 10 12 4 8 a. Object moves in a clockwise direction and slows down. b. Object moves in counterclockwise direction and slows down. c. Object moves in clockwise direction and speeds up. d. Object moves in counterclockwise...
A position-time graph is shown below: Position vs. Time 15 Position (cm) -> Time (seconds) -> Which statement accurately describes the motion of the object in the graph above over 10 seconds? The object moves forward at 1 cm/s, stops, and then continues at the same velocity. The object moves forward at 1 cm/s, stops, and then increases velocity to 2 cm/s. The object is at rest for 4 seconds and then moves forward for 4 seconds at 1 cm/s....
A machinist turns on the power on to a grinding wheel at time t = 0s. The wheel accelerates uniformly from rest for 10s and reaches the operating angular speed of 58 rad/s. The wheel is run at that angular velocity for 30s, and then power is shut off. The wheel slows down uniformly at 1.4 rad/s^2 until the wheel stops. What is the total number of revolutions made by the wheel in this situation ? A machinist turns on...
Part 2: Velocity vs. Time 1. For each velocity vs. time graph (Graph 3 and 4), describe how you would walk in order to replicate the 1-D motion graph. Use words such as away, toward, at rest, speeding up, slowing down, constant speed. Be specific with your time periods. 2. For each velocity vs. time graph, create the corresponding position and acceleration versus time graphs. Construct your graph on a computer program such as Microsoft ExcelB. If you do not...
For this page: The person's velocity vs. time graph is given to be: 4 Velocity (m/s) 0.50 m/s 2.0 4.0 Time (s) -0.5 m/s the position vs. time graph. Include units, labels, and numerical values on the graph. B. What is the person's average velocity? What is the person's average speed? D What is the person's instantaneous acceleration att3.0 s? , what is the person's instantaneous velocity at t = 1.0 s? PHY 201 Lab Manual
Please help with this Kinematics question! Position and time
graphs. Velocity vs. time graph.
Consider this position vs. does the corresponding velocity vs. time graph look like? 1. time graph. What (a) Sketch your prediction below * Now reproduce the position graph by walking, and see if the velocity graph comes out the way you expect. 10 t (seconds) Velocity Graph Prediction Velocity Graph Result (m/s) o (m/s) 0 10 6 10 t (seconds) t (seconds) 2. Here's a velocity...
Please help with this Kinematics question! Velocity vs. time
graph.
3. Consider this velocity vs. time graph. (a)* At what times does the obect change direction? (m's o How do you know? 10 -1 t (seconds) (b) What is the object doing at t-6 s and -9 s. (Hint: It's not changing direction.) (c) In which direction is the object moving at-7s? Explain. (d) At what time is the object farthest from its initial position? How do you know? (e)"...
Please help me solve questions 6
6) A 50 kg person on a scale is in an elevator. The elevator is at rest for 3 seconds. Then it takes 0.8 seconds to accelerate to 6 m/s moving down. It moves elevator then takes 1.2 seconds to slow to a stop. at this speed for 5 seconds. The 6a) Draw an FBD of the situation during both of the accelerations. 42 What is the acceleration of the person during the first...
2. For each of the following motions draw a motion diagram, a position-vs-time graph, and a velocity-vs-time graph. a. A car starts from rest, steadily speeds up to 40 mph in 15s, moves at a constant speed for 30s, b. then comes to a halt in 5s A rock is dropped from a bridge and steadily speeds up as it falls. It is moving at 30 m/s when it hits the ground 3s later. Think carefully about the signs.
e. Both its angular momentum and its angular velocity remain constant. 19. The graph below represents the angular velocity of a rigid object. Which statement is true regarding the time interval (2-3) s? w (rad/s) 8 4 0 t(s) 2 4 6 8 10 12 4 8 a. Object moves in a clockwise direction and slows down. b. Object moves in counterclockwise direction and slows down. c. Object moves in clockwise direction and speeds up. d. Object moves in counterclockwise...
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