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

Q: A woman drives 50 miles to the north. She stops, asks directions, and then drives 50 miles south. If…

A: Given,

Q: student holds a ball 1.55 meters above the ground and drops it. Her friend uses a stopwatch and…

A:

Q: To find the depth of a water well at home, Martha and Amira drop a heavy rock into the well. After…

A:

Q: Consider the case of a student wishing to investigate the acceleration of a small cart in a lab…

A: Velocity versus time graph

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: Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper…

A: To determine: The angle of the wedge, of the two rectangular pieces of the plane glass   Given: The…

Q: A soccer player kicks a rock horizontally off a 30.0-m-high cliff into a pool of water. If the…

A: Solution:Given:h = height of the cliff = 30.0 mt = player hears sound of splash after this much time…

Q: A student holds a ball 1.55 meters above the ground and drops it. Her friend uses a stopwatch and…

A: We have been given that h = 1.55 m t = 0.57 Using these values, the value of acceleration due to…

Q: I looked at the motion diagram and thought it was representing an object accelerating to the right…

A: Given, A motion diagram represnting an object accelerating to the right . So , net force must be…

Q: An object moves in along the x-axis with an acceleration given by: a = 5t2 + 10t (m/s2). The…

A: Consider the expression of the acceleration. Using the definition of acceleration. Integrating…

Q: A runner is moving with a speed of 2.68[m/s]. How long will it take the runner to complete a 5.0[km]…

A: The expression for find time taken by the runner to complete the race is t=dv

Q: An object moves along a straight line and experiences a constant acceleration of +1.53 cm/s2. At t =…

A:

Q: Ibrahim and Ismail are playing a slide in the playground at Taman Krubong Perdana. The slide…

A:

Q: A juggler is practicing tossing balls on a train which is moving north at 30 m/s. She tosses a ball…

A:

Q: You throw a ball straight upward from the Furman bell tower at a velocity of 96 ft/s. The bell tower…

A:

Q: After 3 seconds the speed of the rock is ____ m/s.

A:

Q: A river has a steady speed of 0.300 m/s. A student swims upstream a distance of 1.00 km and swims…

A:

Q: Consider a toy rocket that undergoes one dimensional motion. It is launched from rest straight up…

A: Given:- ∆t1= time taken to go from o to A a= acceleration of rocket before t1 = acceleration of…

Q: a swimmer heading straight through a 200m wide river reaches the opposite shore in 6 min 40s. She is…

A:

Q: How far has the salmon traveled? Explain the difference between your two answers

A:

Q: Consider a toy rocket that undergoes one dimensional motion. It is launched from rest straight up…

A:

Q: A thief is trying to escape from a parking garage after completing a robbery, and the thief’s car is…

A:

Q: An unidentified flying object (UFO) is observed to travel a total dist starting and ending at rest,…

A:

Q: are on the roof of a Physics Building, 29 m above the ground. Your physics professor, who is 1.99 m…

A: Distance =speed × time

Q: The velocity of an object in one- dimensional motion is v(t) = (3.00 t + 5.00 t2) m/s, where t is…

A: Acceleration is nothing but the rate of change of velocity i.e change is velocity per time. So in…

Q: You attach a meter stick to an oak tree, such that the top of the meter stick is 2.67 meters above…

A: The diagram of the system is given below:                                               According…

Q: A   boy  throws a  ball  upward in  the  vertical  direction  at  the base of  a  hill 40.0  meter…

A: Given:Height of hill, H = 40 mdistance, s = 20 m

Q: A child plays on an escalator by going up and down while the escalator is moving. When he runs…

A: Given The duration of upward motion tup=27 s The duration of downward motion tdown=79 s velocity of…

Q: A pilot flies in a straight path for 1 h 30 min. She then makes a course correction, heading 10…

A: The distance traveled in the original direction is given by: distance = speed x time = 640 mi/h x…

Q: Alice is riding a bike at 12 mph, but decides to sprint.  She takes 0.7 s to accelerate to 19 mph.…

A: Acceleration defined as a rate of change of velocity. Acceleration is a vector quantity, because it…

Q: An engineer is designing the runway for an airport. Of the planes that will use the airport, the…

A: Given data: Magnitude of minimum acceleration is, a=3 m/s2. Take-off speed is, v=65 m/s.

Q: A single-engine air plain starts its engine at one end of the runway. It accelerates at a constant…

A: Given, velocity v=38 m/s time t=20 s

Q: An object moves along a straight line and experiences a constant acceleration of +1.36 cm/s2. At t =…

A:

Q: The position of an object moving along an x axis is given byx= 3.18 t-4.04 +1.03 t, where x is in…

A: Given Data :Position of the object as a function of time is given as x(t) = (3.18)×t - (4.04)×t2 +…

Q: Liliana can paddle her kayak 7 miles per hour in still water. It takes her as long to paddle 12…

A:

Q: A soccer player kicks a rock horizontally off a 32 m high cliff into a pool of water. If the player…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –