A plane can fly 350 mph in still air. If it can fly 205 miles downwind in the same amount of time it can fly 145 miles upwind, find the velocity of the wind.

Q: At what point above the ground will they meet?

A: The equations that govern the motion of a particle in a plane are v=u+ats=ut+12at2v2=u2+2as v is the…

Q: A package containing emergency medical supplies is dropped by a Red Cross helicopter in a remote…

A: The three kinematic equations of motion are

Q: A brick is thrown upward  from the top of the building at an angle of 25degrees to the horizontal…

A: The y component of velocity is.

Q: drop a baseball from the top of a 18m window, somebody right below me throws their own baseball…

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Q: ly upward with a speed of 12.0 m/s inside a bus moving at 9.0m/s. what is the velocity of a ball as…

A: Given:-  The velocity of the bus is  u = 9 m/s  The velocity of the ball's vertical upward direction…

Q: A T-shirt cannon launches a shirt at 5.00 m/s from a platform height of 3.00 m from ground level.…

A: Solution:-Given thatInitial velocity (u)=5 m/sInitial height (h1)=3 mFinal height (h2)=1 m

Q: Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The…

A: The relative velocity of the second runner with respect to the first runner is the difference…

Q: A tennis player tosses a tennis ball straight up and then catches it after 1.36 s at the same height…

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Q: Two cars are traveling in the same direction, Car A (60km/h) in front of Car B (40km/h). What is the…

A: In this case, both Car A and Car B moving in the same direction.   The speed of Car A, VA=60 km/h…

Q: A fireman shoots water at a burning building at an angle of 25o and a velocity of 75 m/s. If the…

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Q: a) How high is the balcony from the ground below, b) how far does the pebble travel before striking…

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Q: A bullet is fired horizontally at a target 40m away. The velocity of the bullet as it leaves the gun…

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Q: If you let go a golf ball 2 meters above the ground. When the ball hits the ground, what is the…

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Q: Suppose you toss a basketball upward while standing still with an initial velocity of 7…

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Q: The initial speed of a bus is 0.20 km / s. If the bus must hit a target that is at a horizontal…

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Q: Suppose a chinook salmon needs to jump a waterfall that is 1.37 m high. (a) If the fish starts from…

A: Height of waterfall H=1.37 m The horizontal distance covered by the fish is sx=1.09 m The velocity…

Q: To find the absolute velocity of the points of the rim of the wheel rotating around its fixed axis…

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Q: In a high-speed police chase, a police van is racing after an assassin at a speed of 90 kmph.  The…

A: Given : Speed of the police van, Vp = 90 km/h = 25 m/s Muzzle speed of the bullet, Vb = 150 m/s…

Q: A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life…

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Q: A ball is dropped from a window and hits the ground with a speed of 25 ft/s. How high above the…

A: Part-I: Given: The intial velocity of the ball is 0 m/s. The final speed of the ball is 25 ft/s.

Q: In a location where the train tracks run parallel to a road, a high-speed train traveling at 100 m/s…

A: Given that,Speed of train : v1 = 100 (m/sec)Speed of train : v2 = 20 (m/sec)Here we need to find the…

Q: A cannon is elevated to 35º and can launch a projectile at a speed of 300 m/s. It is to launch a…

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Q: At 12 am, train A sets off due west at a fixed speed of s mph. Train B sets off due east from the…

A: Given:Speed of train A due west from the station at 12 am = s mphSpeed of train B  due east after 2…

Q: In a boat race, boat A is leading boat B by 36m and both boats are travelling at a constant speed of…

A: Given, In a boat race, boat A is leading boat B by 36m and both boats are travelling at a constant…

Q: A bridge is opening and you (a car) has to make the jump. you rev your car up to 30m/s and you more…

A: GIVEN : Velocity of car = 30 m/s Angle of motion of car with horizontal = 25 degrees

Q: The archerfish uses a remarkable method for catching insects sitting on branches or leaves above the…

A: Given: The speed of the water stream exiting the fish’s mouth to be 3.7 m/s,             an…

Q: Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The…

A: Given:- two runners separated by a distance of d= 45 m  The front runner velocity vf = 3.50 m/s  The…

Q: When the velocity of the moving body is non-zero, its acceleration must be non-zero also.True or…

A: Given that the velocity of the moving body is non-zero. To discuss that body acceleration must be…

Q: en A dog sees a squirrel 7.4 m away. The dog runs toward the squirrel at 6.2 m/s. The squirrel was…

A: GivenSpeed of dog The distance which should be covered by dog is given by The distance which should…

Q: A swimmer heading directly across a river 200 m wide reaches the opposite bank in 6 min 40 s. She is…

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Q: 69) A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a…

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Q: A motorcycle travels 80 m [north] in 15 s. The motorcycle then turns around and travels 60 m [south]…

A: Given data:  Displacement (d1) = 80 m, North Displacement (d2) = 60 m, South Required: The net…

Q: A fish swims 450 m [E] then 250 m [W] in 25 seconds. What is the average velocity of the fish?

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Q: The Lunar Roving Vehicle used in NASA’s late Apollo missions reached an unofficial lunar land speed…

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Q: A ball rolls off a 1.50m high table and hits the floor 2.00m from the table. What is the time that…

A: Given Data The vertical displacement of the ball is : y=−1.50m The horizontak displacement of…

Q: A crow flies carrying a shiny rock. The crow reaches an altitude of 65m and is flying 34.5 m/h. It…

A: Given,v0y=0 m/s Unit conversion: 1 h = 3600 s 1 km = 1000 m the initial speed of the crow (same as…

Q: Express the following quantities in SI units:  23.4 grams = 2.34 x 10^-2  124 millimeters =  1…

A: Given quantities: 23.4 grams = 2.34 x 10^-2  124 millimeters =  1 hour and 24 min =   0.12…

Q: A truck is traveling east at 82 km/h. At an intersection 34 km ahead, a car is traveling north at 60…

A: Solution:      a The position vector is            r= -34+x i∧+y,j∧→            1…

Q: A man drives a motorcycle off a horizontal roof to a neighboring rooftop to another building. The…

A: Height difference= 6 m horizontal distance = 10 m

Q: Two airplanes leave an airport at the same time. The velocity of the first airplane is 680 m/h at a…

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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.