One aeroplane travels due north at 300km/h while another travels due south at 300km/h. Are their speeds the same? Are their velocities the same? Explain.

Q: You are on the roof of a Physics Building, 23 m above the ground. Your physics professor, who is…

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Q: Which of the following reported quantities are velocities? Select all that apply. O 12.0 mph east…

A: Velocity: The term velocity in physics can be defined as the change in the position of the particle…

Q: A student drops a ball from a height of 37.0m. If the ball increases speed at a uniform rate of…

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Q: you are driving your car along a country road ar a speed of 23.8m/s. As you come over the crest of a…

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Q: Question 1: What would be the relative velocity of a man swimming against a flowing river if the…

A: According to question --- given that --  Question 1 - velocity of man in still water = 5 m/s .…

Q: You are on the roof of a Physics Building, 21 m above the ground. Your physics professor, who is…

A: The vertical displacement of the ball is, y=ut+12at2y=12at2       ...... (1)   The vertical distance…

Q: Car A is heading east at 30 m/s and Car B is heading west at 22 m/s. Suddenly, as they approach each…

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Q: 1. A flare is launched in the air and its height in metres after t seconds is shown in the table at…

A: (a)Let us consider the velocities (V1) & (V4) in meter /second of flare at 1 sec & 4 sec be…

Q: A hiker walks 2.95 km north and then 4.10 km west, all in one hour and twenty minutes. (a)…

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Q: A car travels at a constant rate for 25 miles, going due east for one hour. Then it travels at a…

A: Given 25mile in 1st hour 60 mile in 2nd hour Rate of motion is constant.  " Velocity at particular…

Q: Select the following that are true distance time O The object is increasing it's distance with time…

A: Let's chech each orion one by one 1. The object is increasing its distance  with time This statement…

Q: A ball is thrown upward with an initial speed Vo. When the ball reaches a height of h = 2 m, its…

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Q: If Yomi is walking 3 m/s to the north and David is walking 3 m/s to the west, then which of the…

A: Given : Yomi is walking 3m/s to the North. David is walking 3m/s to the West. We have to tell which…

Q: An object is thrown from a level field with initial upward speed 17 m/s and forward speed 9.9 m/s.…

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Q: A biker travels along a straight road to the east for 100 meters in 4 seconds and then to the west…

A: The expression for the average speed of the biker is, v=x1+x2t1+t2

Q: You are on the roof of a Physics Building, 25 m above the ground. Your physics professor, who is…

A: The given data are: h1=25 mh2=1.68 mv=2.26 m/s Here, h1 is the height of the building, h2 is the…

Q: What is the distinction between speed and velocity? Describe a situation in which an object's speed…

A: NOTE: ● The physical quantity which has only magnitude ,called scalar quantity. ●The physical…

Q: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h…

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Q: A person travels by car from one city to another with different constant speeds between pair of…

A: v1 = 80 km/hr , t1 = 30 min v2 = 100 km/hr , t2 = 12 min v3 = 40 km/hr , t3 = 45 min v4 = 0 km/hr ,…

Q: How far has the salmon traveled? Explain the difference between your two answers

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Q: A car, initially traveling at (30 km/hr), accelerates at the constant rate of 1.50 m/s?. How far…

A: Here we have to use equation of motion

Q: A motorist travels 160 km at 80 km/h and 160 km at 100 km/h. What is the average speed of the…

A: Given: The motorist traveled 160 km at speed of 80 km/h. The motorist traveled 160 km at speed of…

Q: In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel…

A: Given; The initial velocity of red car u1= 25 km/h = 6.94m/s In the next scenario U1 = 50km/h = 13.9…

Q: The acceleration due to gravity on the moon is 1.67 m/s2. If a person can throw a stone 12.0 m…

A: Given,

Q: An object moves along the ry-plane. At some instant, its velocity and acceleration are J = – (3 m/s)…

A: for straight line motion, the velocity and acceleration are in same (or opposite) direction.

Q: On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What must your…

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Q: car traveling with the initial speed of 30 m/s and traveling a distance 450 m with the final…

A: A car initial speed u = 30 m/s  The final speed of the car is v = 80 m/s  The distance travel by the…

Q: An automobile reduces its speed from 70.00 kph to 50.00 kph after covering a distance of 480.00 m.…

A: Second equation of motion, V2 - U2 = 2 a S Where, V = final velocity               U = initial…

Q: Two rockets are fired upward. The first rocket’s velocity is given by the function v1(t)= 4t; the…

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Q: If you travel in a straight line at 50 km/h for 1 h and at 100 km/h for another hour, is your…

A: Given that, speeds, V1 = 50 km/h                                 V2 = 100 km/h…

Q: 4.3 You are driving in one direction on a long straight road. You drive in the positive direction at…

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Q: You are on the roof of a Physics Building, 45 m above the ground. Your physics professor, who is…

A: Let xp be the distance the professor must move while the egg is falling for the egg to hit the…

Q: One airplane travels due north at 300 km/h while another travels due south at 300 km/h. Are their…

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Q: < Which of the following best compares average speed with average velocity? 2 A Average speed is…

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Q: You drive for 100 miles at 20 mph. You then drive 100 miles at 60 mph. Your average speed over the…

A: The distances and their corresponding speeds. d1 = 100 milesv1 = 20 mphd2 = 100 milesv2 = 60 mph

Q: You drive your car 5.0 km due east at 35 km/hr and suddenly realize that you forgot your wallet. So,…

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Q: If an object is thrown straight up with an initial speed v = 18 m/s from ground level, What will be…

A: Given data The initial speed is v=18 m/s The time is t=2 s   The equation of motion for the object…

Q: 3. An object is thrown vertically downward at 5 m s-1 from a height of 30 m. Calculate (i) the speed…

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Q: You are on the roof of a Physics Building, 34 m above the ground. Your physics professor, who is…

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Q: Two cars leave from the same position at the same time. One travels due North at 30 mph, while the…

A: Speed of Car A due north is Va = 30 mph Speed of car B due east is Vb = 40 mph

Q: two car with a distance of 100m between them are moving in the same direction with the same speed.…

A: Write the expression of final velocity of first car in 5 seconds.   v1f=v+at=v-a5v1f=v-5a   Assume…

Q: You take your dog on a walk to a nearby park. On the way, yourdog takes many short side trips to…

A: There is a basic difference between distance and displacement.  Displacement is a vector which…

Q: You are on the roof of a Physics Building, 15 m above the ground. Your physics professor, who is…

A: Given: Height of the building=H=15 m Height of the professor=h=1.84 m The velocity of the approach…

Q: One car travels due east at 40km/h, and a second car travels north at 40km/hr. Are their velocities…

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Q: On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What must your…

A: Total distance (d) = 200km = 200000m First 90km avg speed is 20m/s For the entire 200km avg speed is…

Q: You are on the roof of a Physics Building, 16 m above the ground. Your physics professor, who is…

A: Using equation of kinematics, t=2∆yg=216 m-1.99 m9.8 m/s2=1.69 s

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.