A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims back to the startingpoint. If the student can swim at a speed of 1.20 m/s in stillwater, how long does the trip take? Compare this with the time thetrip would take if the water were still.

Q: A soccer player kicks a rock horizontally off a 44 m high cliff into a pool of water. If the player…

A:

Q: The acceleration of a particle is given by a = -ks2, where a is in meters per second squared, k is a…

A: Given, a=-ks2 m/s2 s= 8 m k= 0.3 /ms2 At t=0 , s0= 4 m v0= 27 m/s

Q: Maegan goes to a swimming pool. After drinking the contents of a water bottle, she stoppers the top…

A:

Q: A point mass moving on a vertical line has an acceleration given by the equation a = 10t – 3. At t =…

A:

Q: 3. The vector position of a particle varjes in time according to the expression r = (3.00i –…

A:

Q: A stone is dropped from a height of 6.4m above a pool of water that is 6.0m deep. After striking the…

A:

Q: A Hot Wheels car, mass m=42.53 g, arrives at the base of a hill moving with a velocity of 15.19…

A: mass of car(m)=42.53 g initial velocity (vo)=15.19 ft/s

Q: The velocity of a parachutist during free fall is f (t) = 60(1 - e-0.17t) meters per second. (Recall…

A: The physical quantities are classified into two types- scalar and vectors. Scalar quantities are…

Q: A bath toy is floating stationary in water such that half of the toy is above water and half of the…

A:

Q: Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? The…

A: Maxima and Minima of functions If we are given a function fx and we have to find the points of…

Q: A child shot a toy gun at a target right over his head. If the child does not hit anything and the…

A: Given : Initial velocity (u) = 65 m/s Time (t) = 5.2 s acceleration = -g =-9.8 m/s

Q: The acceleration of a particle is given by a = -ks2, where a is in meters per second squared, k is a…

A: This is a general problem in mechanics which can be solved using newtonian mechanics. acceleration…

Q: You are standing next to an old well. You want to know how far down the surface of the water is (you…

A:

Q: A particle moves in rectilinear motion with an acceleration of a = 2vi m/s², where v is in m/s. If s…

A: According to question we need to find--- determine the time for the particle to achieve a velocity…

Q: Jane took 10 minutes to drive her boat upstream to water-ski at her favorite spot. Coming back later…

A:

Q: A nickle is dropped from a hot-air balloon that is 320 m above the ground and rising vertically at…

A: At the maximum height, the velocity is zero,

Q: Two students are canoeing on a river. While heading upstream, they accidentally drop an empty bottle…

A:

Q: While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s^2 for 12.0 s. (a) Draw a…

A:

Q: During the same Olympics, Bolt also set the world record in the 200m dash with a time of 19.30 s.…

A:

Q: Consider the given grap the following: 1. The acceleration from 0 s to 2 s 2. The acceleration from…

A: This problem can be solved using basic formula of linear acceleration and distance.

Q: A rocket sled having an initial speed of 107 mi/h is slowed by a channel of water. Assume that…

A:

Q: maximum time

A: First find the time the skydiver has while jumping from 15000 m.Initial vertical velocity is…

Q: A man flies a small airplane from Fargo to Bismarck, North Dakota a distance of 180 miles. Because…

A:

Q: A particle's velocity is given by vlt) = -atj, where a = 0.725 m/s? is a constant. (a) Describe the…

A: (a)

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

A:

Q: A ball is thrown horizontally with a velocity of 5 m/s from the top of a tall cliff. Neglecting air…

A:

Q: A river has a steady current of 0.50 m/s [E]. A person can swim at 1.2 m/s in still water. The…

A:

Q: Superman starting from rest has an acceleration of 10m/s 2 up. He makes it 127m into the air before…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: During astronaut training, the person rides a simulated rocket, accelerating from rest to maximum…

A: X=16.34

Q: Calculate the deceleration (in m/s2) of a snow boarder going up a 5.1° slope assuming the…

A: Known Values The coefficient of kinetic friction of waxed wood on wet snow μk = 0.1

Q: with a speed of 0.50 m/s. How lon . long deos it

A: Concept: The time taken by the swimmer with respect to different speeds using the relation of time,…

Q: A particle moves so that its position (in meters) as a function of time (in seconds) is r = î + 5t2…

A: The velocity function is defined as the first derivative of the position function with respect to…

Q: (a) A soccer player kicks a rock horizontally off a 33 m high cliff into a pool of water. If the…

A: Consider the rock is falling in the y axis.Use the equation,The time taken by sound to reach player…

Q: Consider a grey squirrel falling from a tree to the ground. Use a coordinate system in which…

A: The squirrel starts its fall from a height of 1.3 m above the ground. This squirrel falls under the…

Q: (a) A soccer player kicks a rock horizontally off a 35 m high cliff into a pool of water. If the…

A: Part-(a): Let's assume upward and rightward as positive direction. Take horizontal direction as…

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.