● ● Average speed (Vav) is the rate at which is covered. It is a scalar quantity. It can also be defined as the total distance travelled divided by ● the total time to travel that distance. • Instantaneous speed (Vinst or U) is the speed of an object at a Average velocity (Jav) is the rate at which an object is displaced, or the rate of change of It is a vector quantity. This can also be defined as the Vav object at a particular instant. total displacement divided by the time interval for that change. Instantaneous velocity (Vinst or ) is the velocity of When a definition has the word "rate", it means Ex. 2 - Average Speed vs. Average Velocity 1. Find the average speed of the student when walking from... A to B B to C Vav = A to C Ad At A to B 2. Find the average velocity of the student when walking from... B to C A to C Ad At

A stone is dropped into a well. The sound of the splash is heard 5.00 s later. What is the depth of the well? (Take the speed of sound to be 343 m/s.) Number i Units

can someone explain why? with drawings too please.

A person going for a walk follows the path shown in the figure. The total tripconsists of four straight-line paths. Use the component method of vector addition to calculate the person's resultant displacement measured from the starting pointa) in unit vector notationb) magnitude and direction.

IPA child rides a pony on a circular track whose radius is 5.9 m Part A Find the distance traveled after the child has gone halfway around the track. Express your answer using three significant figures. m Submit Request Answer Part B Find the displacement after the child has gone halfway around the track. Express your answer using three significant figures. Πνα ΑΣφ ? Az = m Submit Request Answer

Consider the following physics formula    a = 5 v2n tm where a is an acceleration, v is a speed, t is time, while n and m are numbers. Find the values of the factors n and m so that this formula is dimensionally correct.  a.) n=2, m=1 b.) n=1/3 ,  m=-1 c.) n=1, m=2 d.) n=1/2,   m=-1

If a plane covers a distance of 700 miles in 1 hour and 43 minutes, what is its speed? A) Give your answer in mph B) Give your answer in ft/second MAKE SURE TO SHOW ALL UNIT CONVERSIONS USING THE PARENTHESIS METHOD AND CARRY THORUGHOUT SOLUTION

Time left 0:36:13 If two vectors, ₁ and ₂, are given in terms of magnitude and direction, a resultant can be calculated by performing a 1 21 number of steps. To determine the resultant, you must correctly order the steps below. 1. Calculate the direction of the resultant using the appropriate trigonometric ratio. 2. Draw the resultant vector using the Xtotal component and the total component, remembering to include positive or negative directions. 3. Calculate the resultant magnitude using the Pythagorean Theorem, c² = a² + b². 4. Use a vector diagram and trigonometric functions to convert the vectors to their component forms. 5. Add the components (Xtotal = X1 + X₂) and (Vtotal = 1 + y₂), remembering to include positive or negative directions. The order of steps, starting from the first step and ending with the last step, to determine the resultant is: In calm water, Kris can paddle at a speed of 4.25 m/s. Kris aims the canoe directly across the Bow River where the downstream / Kriss…

Use graphical methods to solve this problem. You may assume data taken from the graph is accurate to three digits. Find the following for path B in the figure below. W S Start The various lines represent paths taken by different people walking in a city. All blocks are 120 m on a side. E (a) the total distance traveled (in m) magnitude direction m (b) the magnitude (in m) and direction (in degrees north of east) of the displacement from start to finish m o north of east

An object is seen moving through following positions. = (0, 1) m 1 = (2, 0) m 2 = (5, – 3) m - a) Draw a picture b) Find the displacement vector for each step: Ao1 and Ař12 c) Find the total displacement: A02. (A: 5£ – 4ŷ) - d) Find the distance between the starting and ending points. (A: V41 m) e) Find the total distance travelled by the object. (A: 6.48 m)