You go watch your friend as she runs at a cross country meet. The first time she passes you, your friend runs by going due north at a speed of 4.40 m/s. You move to a different place on the course and twelve minutes after you saw her the first time, your friend runs past you again. This time she is traveling at a speed of 3.80 m/s in the direction 30.0◦ W of S. What is the direction of her average acceleration between those same two times

Q: 4. A particle starts from the origin at t=0 with a velocity of (161 - 12j) m/s and moves in the xy…

A:

Q: A mountain biker encounters a jump on a race course that sends him into the air at 44.8 degrees to…

A: The objective of this question is to find the launch speed of the mountain biker. We can solve this…

Q: Part A: Multiple Choice: Knowledge and Understanding Identify the letter of the choice that best…

A: Approach to solving question 1:Understand the difference between speed and velocity:Speed is a…

Q: An airplane flies horizontally at a height of h = 7840 m and with a speed of 720 km/h. A package is…

A: The correct answer is option (a) i.e. 40s

Q: An object moves along the positive x-axis with a speed of V1 =4 m/s for 2 seconds, then moves along…

A:

Q: A speedboat moves on a lake with initial velocity vector vLx = 9.01 m/s and v1y average acceleration…

A: Given Data Initial velocity vectors are given as v1,x=9.01 m/s and v1,y=-2.49 m/s Acceleration…

Q: 2. A paper airplane flies 2.64 m [W 26° N] and then is caught by the wind, which causes it to travel…

A: Given, airplane flying 2.64m Northwest at angle of 26°, after that flying 3.21m to the southeast at…

Q: Find the magnitudes of velocities v, and vg in the figure below, where, e = 20.5° and veot = 6.56…

A: θ = 20.5° Vtot = 6.56 m/s To find = VA and VB

Q: PROBLEMS 11.1+ Speed addition. Darnell stands in a railroad coach that moves at speedc relative to…

A: We will answer this question using formula for adding relativistic velocities. The steps are as…

Q: John is driving a car with a velocity of 60kph towards the north direction. Peter, who is with John,…

A:

Q: *64. A jetliner can fl y 6.00 hours on a full load of fuel. Without any windit fl ies at a speed of…

A:

Q: A miniature quadcopter is located at  xi = −2.50 m  and  yi = 2.70 m  at  t = 0  and moves with…

A: a. new x co-ordinate can be calculated as follows,

Q: A secret agent skis off a slope inclined at θ = 28.3 degrees below horizontal at a speed of v0 =…

A:

Q: A child in danger of drowning in a river is being carried downstream by a current that has a speed…

A: Given:-  The speed of the river downstream is vr= 2.65 km/h. The child's distance from the shore is…

Q: The velocity of an airplane in a strong wind is 150 m/s. Which of the following explanations is…

A: Given  Velocity  of  airplane in strong wind  or resultant speed   150 m/s . Therefore,  Vres = 150…

Q: What maximum height, in meters, will be reached by a stone thrown vertically straight upward if it…

A: The third equation of motion is  v2 = u2 - 2 g h  where, u is the initial velocity, v is the final…

Q: The figure above is for a projectile on another planet where g is not 10 m/s2. Ignore air…

A:

Q: An airplane heads 74 m/s west while the wind is blowing it 40 mi/h south. Find the airplane's…

A: Given data: Velocity of airplane (Va) = 74 m/s, due West Velocity of Wind (Vw) = 40 mi/h, due South…

Q: A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed…

A: Given: Speed Vo= 20.5 m/s Height h= 53 m

Q: Daniel takes his two dogs, Pauli the Pointer and Newton the Newfoundland, out to a field and lets…

A: (given) From Daniel's point of view, Newton runs due north at 4.15 m/s. From Pauli's point of view,…

Q: 1. A car travels from point A to D through four station. The Car Travels north from A to B at a…

A: Let's tackle these problems step by step.### 1. Car Travel Displacement and Speeds**Car Travels:**-…

Q: A bird flies at 8.00 km/hr @20o N of W relative to the wind. The wind blows 5.00 km/hr @70o S of E…

A:

Q: Ryeowook is riding a car that is 10.1 km 55° E of N from the intersection and is moving at a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: One of the tasks of the Mighty Hercules was to protect the town of Nemea from a lion. One day…

A: Given information: The initial velocity of the arrow (u) = 210 ft/s The distance at which lion is…

Q: A boat is sailing at 6 m/s 10° north of west. At time t=0 the captain of the boat starts its motor…

A: According to question we need to find that How fast will the boat be traveling after 60 seconds?

Q: 1.A car travels from point A to D through four station. The Car Travels north from A to B at a speed…

A: Let's tackle these physics problems one by one.Problem 1: Car TravelFind distances AB, BC, and CD…

Q: There is a tree in the middle of your front yard and you take pictures of a squirrel as it runs…

A: Given: The distance of the tree from the squirrel in the first picture is 12.0 m. The distance of…

Q: A particle moves along in three-dimensional motion with position vector given x (t) = 3.20 t m i +…

A: The physical quantities are of two types- scalar and vector quantities. The scalar quantities are…

Q: It is Superbowl weekend!!! Capt. Balloon is scheduled to fly the Goodyear blimp from the airport to…

A: displacement in vector notation is 21.4cos240i→+sin240i→km  wind velocity is 6.3cos220-i→+sin220-j→…

Q: A brick is thrown upward from the top of a building at an angle of 20° to the horizontal and with an…

A:

Q: A student throws a set of keys vertically upward to her sorority sister, who is in a window 3.40 m…

A: (a) The keys were thrown with an initial velocity of 12.33 m/s The direction of the initial…

Q: A brick is thrown upward from the top of a building at an angle of 15° to the horizontal and with an…

A:

Q: An airplane cruises at 900 km/h relative to the air. It is flying from Denver, Colorado, due west to…

A:

Q: A speedboat moves on a lake with initial velocity vector vx = 8.65 m/s and v1 y = -2.21 m/s, then…

A: Final speed of

Q: The motion of a dog is observed to be given by the function = (1.28 m/s²) t²-[(0.66 m/s³) t³-2.99…

A:

Q: A light plane flies north from Hamburg to Kiel (100 km) with an air speed of of 340 km/h through…

A: Here we will simply use speed time formula

Q: Erza is running her wagon on straight road while chasing Natsu at 200.0 kph. After driving for some…

A: (A) Given: The speed of Erza is 200.0 kph. The curved part of the road has a radius of 13.0 m. Turn…

Q: A cargo plane has a speed relative to the air of 222km/h as it flies North. The wind on this day was…

A: Speed of cargo relative to air (v) = 222 kmhr due northSpeed of wind = 33 kmhr due south

Q: The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an…

A: The velocity of ocean current is given as, v1=2.3 m/s, The velocity of wind is given as, v2=4.5 m/s,…

Q: 1. A skydiver is falling straight down, along the negative y o During the initial part of the fall,…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.