During uniform motion of an object along a straight line, the ________ remains constant with time. A) Time B) Velocity C) Acceleration D) Distance
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During uniform motion of an object along a straight line, the ________ remains constant with time.
A) Time
B) Velocity
C) Acceleration
D) Distance
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- Find the following for path B in Figure 2.59: (a) The distance traveled. (b) The magnitude of the displacement from start to finish. (c) The displacement from start to finish.Which statement describes an object travelling with uniform velocity? O A) An object moves with constant speed along a curved path. An object moves so that an imaginary line from the object to a reference B) point changes in direction. C) An object moves so that an imaginary line segment from the object to a reference point changes in length. D) An object moves with constant speed along a straight path.3) Calculate the average speed of a truck driving on a twisting road travels 15.0 km in a period of 25.0 min. a) Express your answer in m/s. b) Explain why the words “average speed” were the appropriate terms to use for the truck.
- 10) Graph interpretation & conversion: The v-t (velocity vs. time) graph for the motion of a car is shown. The car starts at the origin at the instant the motion begins (t = 0). Carefully draw the following two additional graphs below the given graph, making sure that the time axes use the same scale. a) Acceleration vs. time b) Position vs. time (Be very careful to depict whether the graph is linear, concave up, or concave down.) t₁ N܂ T3 tA car moves in a straight line at a speed of 56.0 km/h. A. How far will the car move in 4.00 minutes at this speed? __ kmB. How long will it take the car to move 0.39 km at this speed? __ sRead the following statements related to the concept of acceleration: 1. Describe the change in position of an object over time. II. Describe how the speed of an object changes over time. III. Describe the rate of change of time with respect to the position. IV. It is a scalar quantity. From the above statements are false which are represented as: a) 1, II AND IV b) II AND IV c) IAND II d) 1, I AND IV
- An object starts with an initial velocity of 14.0 m/s [W] and has an acceleration of 1.2 m/s² [W]. a) What is the displacement of the object after 3.0 s? b) What is the final velocity of the object after 3.0 s? use GRASS methodA cart is pushed forward to the right and slowly moves back to the left on its own. a) Draw a motion diagram for the cart, including a coordinate system. Use arrows to indicate direction of motion. b) Describe the distance traveled and the displacement of the object. Are they the same or not? c) Describe the velocity of the object: when it is positive, zero or negative; when is the velocity increasing or decreasing? d) Describe the acceleration of the object: when is it positive, zero or negative? e) If the cart returns back to where is it started, what is its average velocity?A hiker gets lost in a forest. He walks half-way around a circle with a radius of 2.1 km in 2.0 hours. a) What distance did he walk? b) What was his average speed? c) What was his displacement? d) What was his average velocity?
- Which of the following statements comparing position, distance, and displacement is correct? a. An object may record a distance of zero while recording a non-zero displacement. b. An object may record a non-zero distance while recording a displacement of zero. c. An object may record a non-zero distance while maintaining a position of zero. d. An object may record a non-zero displacement while maintaining a position of zero.____ is an objects change in position relative to a reference point . a) acceleration b) speed c) motion d) velocity ______ is the rate at which the velocity change over time . this occurs if an object speeds up , slows down , or changes direction . a) acceleration b) speed c) motion d) velocity most of the time , you travel at a constant speed . a) true b) falseWhile running on his hands, an athlete sprinted 50.0 m [forward] in a record 16.9 s.a) Determine the average velocity.b) Convert your answer in (a) to km/hr3) Describe the motion of the following sets in terms of acceleration & velocity.