Car A is driving east on the highway, traveling at 20.98ms. Car B is driving east on the same highway and passes Car A. Car B is traveling at 31.51ms. If you are sitting in Car A, what is the speed of Car B from your frame of reference? Assume the direction east is in the positive direction.   10.53ms   9.35ms   6.54ms   13.33ms   None of these is correct.

Q: 3. A man walks 600 m due west and then goes 400 m in a direction 30° northwest. What is his…

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Q: John is walking around cam alks 1.45 km west. Finally, Jc - What is the magnitude and

A: The John walks 2.4 km north  I'm then making a left turn and walking 1.45 km west. John makes a…

Q: You are driving home from school steadily at 97 km/hkm/h for 160 kmkm . It then begins to rain and…

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Q: 2. The motions of two objects, A and B, are defined by the following vectors: vector A = 6.0622i +…

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Q: At 3:00 P.M., a bank robber is spotted driving north on I-15 at milepost 102. His speed is 125.0…

A: Given that:Initial speed, u=125.0 mi/hFinal speed, v=102.9 mi/hTime interval, t=37 mins=3760 h

Q: I took 2.28km and converted it to 2280 meters then divided by 3200 and ended up with .71m/s but it…

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Q: 2. It is given that A - B = 50.4i (m), C = 62.0 i (m), and A + B +C = 14.2 i (m). Find the vectors A…

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Q: Wile E. Coyote, having missed the Road Runner, leaves the edge of a cliff at 41.0 m/s horizontal…

A: Let us consider the downwards direction as positive. We have given here, Gravitational acceleration…

Q: 15. Assume a police station is located along a straight east-west freeway. At noon (t=0), a patrol…

A: The given graph shows the position of the patrol car as a result of time, from its starting…

Q: A ball is thrown at an initial height of 50 feet at an initial velocity of 65 feet/second at an…

A: The given values are, h0=50 ftV0=65 ft/sθ=75°y=-16t2+V0sinθt+h0x=V0cosθt

Q: A person walks 2.05 km south and then 2.75 km east, all in 3.00 hours. (a) What is the magnitude (in…

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Q: The eye of a hurricane passes over Grand Bahama Island in a direction 60.0° north of west with a…

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Q: 7. A train is traveling 22 degrees north northwest (i.e. 22 degrees west of due north) at a speed of…

A: Given, vTG =40 mph @  220 NorthwestvPT=3 mph @ 480 Southwest

Q: An airplane taking off moves at 500 km/h at an angle of 4° to the horizontal in the direction W30°N…

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Q: Consider the game of baseball. A pitcher throws a ball to the catcher, with a speed of 86 miles per…

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Q: Bob has just finished climbing a sheer cliff above a level beach and wants to figure out how high he…

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Q: 1.A pilot diverted a CF-18 fighter jet 20.0 km [S 38.0° E] to avoid thunderstorm, and then flew 60.0…

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Q: An airplane is flying 20.0" north of east at a speed of 750 km/h. How fast is it moving to the…

A: 750 km/h, 20o [N of E]

Q: The eye of a hurricane passes over Grand Bahama Island in a direction 60.0° north of west with a…

A: In this question we need to find net displacement of hurricane. First of all, we will determine…

Q: 4. At 12:00 noon, an arctic explorer starts heading back to his base camp located 5.15 km due north,…

A: displacement vector for base camp (d→) = 5.15 km j^d1→ = 6.22 km @15o east of north Let the second…

Q: Two ships A and B leave the same port at 3:00 p.m. Ship takes a course N 43°43'W at 30 km per hour…

A: Let the port be denoted by O The two ships make a right angle triangle OBA. Angle between OB and OA…

Q: Mr. M is walking to Mr. T’s house. He takes a short cut across an open field. His first displacement…

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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.