A small fish is dropped by a pelican that is rising steadily at 0.44 m/s. After 4.3 s, what is the velocity of the fish? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s. How far below the pelican is the fish after the 4.3 s? Answer in units of m

Q: A tennis ball with a velocity of 24.4 m/s is thrown perpendicularly at a wall. After striking the…

A: The average acceleration of the ball can be given as

Q: Q14: An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is…

A: Given  Initial speed of arrow 15 m/s in upward direction  ∴  Vi = 15 m/s  Final speed of arrow…

Q: A rocket moves straight upward, starting from rest with an acceleration of +29.6 m/s2. It runs out…

A:

Q: A pirate ship launches a cannon ball with an initial speed of 200 m/s. The ball is to strike an…

A:

Q: A ball is thrown straight up with an initial speed of 20.0 m/s. If air resistance can be ignored,…

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

A:

Q: A train is travelling forward along a straight track. It initially travels at 58.0 m/s for 1.1 km,…

A: Given : Initial Velocity = 58 m/s for distance 1.1 km = 1100 m             Final velocity = 49 m/s…

Q: A ball is thrown straight up with an initial speed of 12 m/s. What are the velocity and acceleration…

A:

Q: An arrow is shot straight up in the air at an initial speed of 20.0 m/s. After how much time is the…

A:

Q: A car is moving along a straight road with an initial velocity of v=14 m/s and an acceleration, a=6…

A: Given that: Initial velocity of car, vi= 14 m/s acceleration of car, a = 6m/s2 time, t = 4 sec

Q: A motorist drives north for 41.0 minutes at 67.0 km/h and then stops for 15.0 minutes. He then…

A: @ first 41 minutes, t1= 41min = 41/60 hours = 0.683333333 hours v1= 67 km/hr Therefore,…

Q: Carrie threw a ball upward with an initial velocity of   2000 cm/s and was able to catch it and was…

A: 1)t = 1 sec a=g =  9.8m/s2 a= v/t v= 9.8*1 = 9.8 m/s = 9.8 *100 = 980 cm /sec v= 980 cm/s  2 )…

Q: A car speeds up from 40 km/h to 55 km/h to overtake a truck. If this requires 15 s, what is the…

A: Given data: Initial velocity (v0) = 40 km/h Final velocity (v) = 55 km/h Time (t) = 15s Required:…

Q: A ball is dropped from a height of 4.9m. At the same time, a second ball is thrown upwards, so that…

A:

Q: While a helicopter is simultaneously ascending 6 m per second and flying due north at 110 km/h, an…

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Q: A car is moving along a straight road with an initial velocity of v=38 m/s and an acceleration, a=8…

A: Given data: Initial velocity vi =38 m/s Acceleration a =8 m/s2 at time t=4s

Q: ball is thrown straight up with an initial speed of 12 m/s. What are the velocity and acceleration…

A: given - given a ball is thrown up with intial speed of 12m/s .  to find - velocity and acceleration…

Q: A freely falling object requires 1.5 s to travel the last 30.0 m before it hits the ground. From…

A:

Q: An object is thrown upward at time t = 0. After t seconds, its height is y = -4.9t2 + 2t + 2 meters…

A: y=-4.9t2+2t+2a Initial height from object throwny=-4.9t2+2t+2At t=0 secy=-4.9×0+2×0+2y=2 m

Q: A Cessna aircraft has a minimum speed of 135 km/h to take off, aka the lift-off speed. What minimum…

A: Given data The initial velocity of the aircraft is given as u = 0 m/s. The final velocity of the…

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: 3. The explorer took 60 s, 130 s, and 70 s to travel the 30 m, 20 /2 m, and 140 m north distances,…

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Q: ‚A vehicle starts from rest and travels eastward along a straight and level track. For the first 5.0…

A:

Q: We are standing on the top of a 1040 feet tall building and launch a small object upward. The…

A: Given data The height of the building is H = 1040 ft. The expression for the height of the object…

Q: Starting from rest, the elevator in an office building is accelerated 0.5 m/s2 for 5 seconds. And…

A:

Q: A dog runs with an average velocity of 7.5 m/s east from one point to another in 2.4 s. It then…

A: The data in the question are, Dog moves toward east with average velocity 7.5 m/s in 2.4 s denote…

Q: A ball is accelerating at 0.6 m/s² while it covers 20 m. If it reaches a speed of 8 m/s, find the…

A: Acceleration,   a=0.6 m/s2Displacement, d=20 mFinal speed, v=8 m/s

Q: If you drive at a constant velocity of 30 m/s for 1.5 hrs, what will be your displacement in meters?…

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Q: A ball is dropped on the moon from a height of 1.90 meters. The acceleration of gravity on the moon…

A:

Q: A stone is thrown vertically upward and returns to earth after 3 seconds. What is the initial…

A: Given data:  Stone thrown vertically upward Time taken to returns on earth = 3 s Required: The…

Q: 5. An astronaut drops a hammer from 2.0 meters above the surface of the Moon. If the acceleration…

A: Initial velocity of the hammer will be zero as it is dropped by the astronaut.Now the kinematics…

Q: A race car starts from rest and travels east along a straight and level track. For the first 5.0 s…

A: Given : Velocity of car in eastward direction is given by :  v(t) = 0.86 t2   To find :…

Q: The velocity of a particle along the s-axis is given by v = 10s4/3 where s is in millimeters and v…

A: Given, Velocity of the particle, v = 10 s43 s is in mm s = 5.8 mm

Q: A jet plane beginning its takeoff moves down the runway at a constant acceleration of 4.30 m/s2.…

A: Write down the given values using suitable variables. Here u signifies initial velocity, a…

Q: A car is moving along a straight road with an initial velocity of v;=23 m/s and an acceleration, a=6…

A:

Q: A car is moving along a straight road with an initial velocity of v=12 m/s and an acceleration, a=3…

A: Initial velocity, u = 12 m/s Acceleration, a = 3m/s2 Time, t = 9 s

Q: An astronaut on a strange planet finds that he can jump a maximum horizontal distance of 16.0 m if…

A: It is given that on a strange planet, the maximum horizontal distance covered by an astronaut is R=…

Q: A car is moving along a straight road with an initial velocity of V;=23 m/s and an acceleration, a=5…

A:

Q: An object moving in the +x direction experiences an acceleration of +2.0 m/s?. This means the object…

A: Given information: The object is moving in +x-direction. The acceleration is +2 m/s2 The +ve, sign…

Q: wake up in a strange room with no windows. This time you drop a ball from a height of 2.24 m and it…

A: We know that the second equation of the motion is given as  S = ut + 12at2 where S is the distance…

Q: QIA body moves from point A at a velocity of 10 km/h\to the west, and after 3h it arrived to point…

A: (1) Calculate the distance D1 travelled by the body from point A to point B. D1=v1t1=10 km/h×3 h=30…

Q: A cheetah running with an initial velocity of 18 m/s and accelerates at a rate of 1 m/s/s for 5…

A:

Q: A car is moving along a straight road with an initial velocity of v, =13 m/s and an acceleration,…

A: Given data, Initial velocity of the car = 13 m/s Acceleration = 2 m/s2 time = 4 seconds

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.