Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The front runner has a velocity of 3.50 m/s, and the second a velocity of 4.20 m/s. (a) What is the velocity of the second runner relative to the first? (Enter a number. Enter your answer in m/s faster than the front runner.) m/s faster than the front runner (b) If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity? O The second runner will win. O The first runner will win. (c) What distance (in m) ahead will the winner be when she crosses the finish line? (Enter a number.) m

Q: The mass of an ear ring is 950 mg. Express this mass in SI unit. (a) 9.50 x 10-6 kg (b) 9.50 x 10ª…

A: Given data: Mass of an ear ring (m) = 950 mg Required: Mass in SI unit

Q: dx Væ(2 – x) ||

A: Formula-                    ∫ dx1-x2 =  sin-1x+C

Q: Find the distance covered by mam Speed-4 m/s Time 5 s

A: Given data : Speed=S Time=t   Required : Distance=d

Q: How can I convert 1 x 10-3 Pa s to m2/s? or vice versa?

A: Pascal second (Pa-s) cannot be converted into m²/s. But it can be converted into N-s/m².     Pascal…

Q: If a varies directly with m and indirectly to x, and a=18 when m=24 and x=8, find m when a=26 and…

A:

Q: Let A = (25 m)i + (45 m)/ and B = (-25 m)ỉ + (45 m)j . The angle between these two vectors is: A)…

A:

Q: A runaway train car that has a mass of 12500 kg travels at a speed of 5.4 m/s down a track.…

A: Given data: Mass (m) = 12500 kg Initial velocity (v0) = 5.4 m/s Final velocity (v) = 0 m/s Force (F)…

Q: The slope equal to x2-x1/y2-y1 X2-X1 y2-Y1 O True O False

A:

Q: Says the answer for A is wrong

A: Formula Used:

Q: Express 86 km h-¹ in ms-¹.

A:

Q: Eij and k are the usual unit vectors in the x, y and z directions, find aixi c.

A: As we know that i, j and k are unit vectors along the x, y and z directions. These unit vectors are…

Q: (a) Write each of the following vectors in component form: A y 3 m/s x 2) 250 5m x 60º 7 m B (ii)…

A: Step 1: Step 2:

Q: IS subject constant, & 0. > 1.50 a-

A: Given as,

Q: 2.07 is not correct is there another way to sort?

A:

Q: Convert 10^3 g x L^-1 to kg x m^-3

A: Answer  103 gL-1=103 kg m-3

Q: How much current, in kA, does a straight wire have to carry in order to have the same magnetic field…

A: Step 1: Step 2: Step 3: Step 4:

Q: The same toboggan with the same coefficient of friction as in Example 5.16 accelerates down a…

A:

Q: 1- Three vectors, a = 6î +2ĵ – 4k , b = -3î +4j + 2k , č =6î +73+3k , Find the following: a) За b)…

A:

Q: 3 and 0 < 0 < 4 (4)If tan0 find the other five trigonometric of 0 = -

A:

Q: |.84 ] of to units ft 1b 02

A: The following data are given: The given value = 1.84 Jg-1K-1

Q: can you extend the answer until letter H?

A:

Q: MAK F. Look at the forces shown. Find: 20. Fıx 21. FIY 22. F2x F, = 61.0 N at 17.0° north of east F,…

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Q: "If both x and y components of a vector A are positive, then the range of angle will be"

A:

Q: Fig.(4) In figure (5), find the Leq. between points A & B, all L=1 H A relle Fig.(5)

A:

Q: (I) The directions of vectors à and B are given below for several cases. For each case, state the…

A: Required : Direction of the cross product of vectors A and B.

Q: The slope of the 6,5 kN fonce F is specifbed as shown in the figure. Express F as a Vector in terms…

A: The slope of the 6.5-kN force F isspevified as shown in figure. So we have to express F as a vector…

Q: 74 Vectors A and B have identical magnitudes of 5,0 units. Find the angle between them if À + B =…

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Q: Thanks and what about 2.7 and 2.8? you guys have a limit of three questions you only answered one

A: 2.7  The map measurement between Pretoria and Polokwane is 6.1 cm  1 cm on bar scale  = 20 km in…

Q: Given vector A =   and vector B = , what is A dot B?

A: Given            A = &lt;10, 20, 18&gt;          B = &lt;16, -17, -24&gt;

Q: orce if its resultant is 30 KN makin

A: Let us consider a resultant force of 30 KN making an angle of 60 degrees from the horizontal &amp;…

Q: Part C Enter the expression -20 + 6D in the answer box using the notation just described. Express…

A:

Q: 1) If the speed of sound @ 20°C is 343 m/s, what is that equivalent to in miles per hour? CON vert

A: The speed of sound at 20oC = 343 msTo convert : The speed of sound at 20oC to miles per hour

Q: Suppose U and V are unit vectors in R" and ||U – aW|| = 6 and angle between U&W is 90°, then the…

A: Answer                +√35  ,  -√35

Q: Vector a is 37m on x axis. Vector b 36 m @230 degree to x axis . Vector c 12 m @ 140 degree x axis.…

A: Given data The magnitude of vector A is A=37 m. The angle between vector A and x-axis is given as…

Q: wouldnt it be 30 divided by 1.5 not by 2 ?

A:

Q: An object has kinetic energy of 88 J. If its speed is 4.7 m/s, what is its mass?

A: Given data: Kinetic energy (KE) = 88 J Speed (v) = 4.7 m/s Required: Mass (m)

Q: Count = 2200H Is (Pointer) = even number No Yes Sum = Sum + (pointer) Pointer = Pointer +1 Count =…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –