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 Kinematics Dynamics Conservation laws Thermodynamics Waves Electricity Magnetism Optics Fluids and elasticity Ideal gas AC current

 Free problems: all problems
 Kinematics Dynamics Conservation laws Thermodynamics Waves Electricity Magnetism Optics Fluids and elasticity Ideal gas AC current

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# Physics problems:kinematics

Displacement

Problem 14.

Mr. Letourneau is flying his broom stick parallel to the ground. He undergoes two consecutive displacements. The first is 100 km 10 degrees west of north, and the second is 120 km 50 degrees east of north. What is the magnitude of the broom stick's displacement?

Solution

Problem 15.

In reaching her destination, a backpacker walks with an average velocity of 1 m/s, due west. This average velocity results, because she hikes for 6 km with an average velocity of 3 m/s due west, turns around, and hikes with an average velocity of 0.3 m/s due east.

How far east did she walk (in kilometers)?

Solution

Problem 16.

It takes you 9.5 minutes to walk with an average velocity of 1.2 m/s to the north from the bus stop to museum entrance. What is your displacement?

Solution

Problem 27.

A plane flies 955 km due east, then turns due north and flies another 469 km. Draw an x-y axis at the starting point with the positive x-axis pointing east, and determine the polar coordinates of the plane's finale position.

Solution

Problem 40.

A boy walks to the store using the following path: 0.4 miles west, 0.2 miles north, 0.3 miles east.  What is his total displacement?  That is, what is the length and direction of the vector that points from her house directly to the store?

Solution

Problem 71.

A stone falls freely from rest for 10 s. What is the stones displacement during this time.

Solution

Problem 75.

What is the displacement of a car accelerating from 5 m/s (right) to 10 m/s (right) in 2.0s?

Solution

Problem 76.

A plane flies 50 degrees east of south for 100 km then 400 km north and then 20 degrees north of west for 250 km. What is the magnitude of the net displacement?

Solution

Problem 81.

An object travels a distance of 5 km towards east, then 4 km towards north and finally 10 km towards east

1) what is total traveled distance?

2) what is resultant displacement?

Solution

Problem 82.

Can two displacements (vectors) of different magnitudes be combined to give a zero displacement (resultant)?

Solution

Problem 84.

A body moves 4 km towards East from a fixed point A and reaches point B. Then it covers 5 km towards North and arrives at point C. Find the distance and directions of the net displacement.

Solution

Problem 100.

A scout travels 5 km south, 3 km east, and 2 north. Find the components of each displacement  and find the final displacement.

Solution

Problem 103.

A man walks 9 km east and then 12 km north.  What is the magnitude of his resultant displacement?

Solution

Problem 104.

To get from one office to another, one travels as follows (with all angles measured clockwise from the West) 2 m at  , 0.5 m at , and 1 m at . How far will a person be from his starting point?

Solution

Problem 108.

Billy jogs 2.5 km east in 45 minutes, takes a water break for 12 minutes, and then walks west at a rate of 0.65 km/hr for 30 min. What is Billy's average velocity? (Answer units: km/hr)

Solution

Problem 109.

Billy jogs 2.5 km east in 45 minutes, takes a water break for 12 minutes, and then again walks east at a rate of 0.65 km/hr for 30 min. What is Billy's average velocity? (Answer units: km/hr)

Solution

Problem 110.

Billy jogs 2.5 km east in 45 minutes, takes a water break for 12 minutes, and then again walks east at a rate of 0.65 km/hr for 30 min. What is Billy's average velocity? (Answer units: km/hr)

Solution

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