You travel from point A to point B in a car moving at a constant speed of  70km/h. Then you travel the same distance from point B to another point C, moving at a constant speed of 90km/h. Is your average speed for theentire trip from A to C equal to 80km/h. Explain why or why not.

Q: 1) Billy Bob drives 35.6km to work each day (down at the call center where he makes up random…

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Q: A turtle and a rabbit engage in a footrace over a distance of  4km. The rabbit runs  0.5km and then…

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Q: You are driving through town at 10.0 m/sm/s when suddenly a ball rolls out in front of you. You…

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Q: At some airports there are speed ramps to help passengers get from one place to another. A speed…

A: the walking speed is

Q: A race car at constant speed of 150 m/s passes a racing motorcycle that is about to start. The race…

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Q: a person walks at 4.5 meters per second from point a to b. Then walks back from point b to a at a…

A: Given data:  From point a to b Speed (V1) = 4.5 m/s From point b to a Speed (V2) = 3.2 m/s Required:…

Q: 1. Christina drives her Mustang along a straight road at a constant speed of 110 km/hr. She passes a…

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Q: A ball is thrown directly upward at a speed of 64 feet per second from a cliff that is 80 feet above…

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Q: A car travels east at 50.0 km/hr for 2.00 hours. It then travels west 40.0 km in 1.00 hour. The…

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Q: 5) An object falls from a building which is 1200 meters high. How long before it hits the ground if…

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Q: There are flies that are flying with a constant altitude of 5 km, that has a velocity of 42km/h. At…

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Q: Bartholomew jogs from home at 3.50 m/s north for 1380 seconds. Then, he turns around and jogs 2.40…

A: Given: The jogger jogs from home at 3.50 m/s north for 1380 seconds. The jogger then turns around…

Q: 5. In a 300-m race, runner A starts from rests and accelerates at 1.6m/s? for the first 30 m and…

A: Given data: The length of race track is L=300 m. The acceleration of runner A for sA=30 m is aA=1.6…

Q: A car is traveling at a steady 80 km/h in a 50 km/h zone. A police motorcycle takes off at the…

A: We have to determine the time elapses before the motorcycle is moving as fast as the car. We are…

Q: 5. A snowboarder starting from rest accelerates uniformly downhill at 3.0 m/s 2 [forward]. How long…

A: We will answer the questions using kinematic equations of motion. The detailed steps are given…

Q: A student begins at rest and then walks north at a speed of v1=0.65m/s. The student then turns south…

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Q: 1. A car is moving at uniform acceleration. Its velocity after traveling for 2 seconds is 4m/s and…

A: We know that-Kinematics equation--v=u+at    equation 01can be written as,a=v-ut    where,v=10 m/su=4…

Q: A powerful motorcycle can accelerate from rest to 23.8 m/s (53 mi/h) in only 2.90 s. (For each…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 23.8 m/s Time (t) = 2.90 s Required:…

Q: While driving down the highway at 30m/s(which is about 72 mph) Bill Gambini spotsa police car,…

A: Given:-

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…

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.