Objective questions based on kinematics

Assignment Help Physics
Reference no: EM1311617

Question 1. A 20 N horizontal force is applied to a 4.0 kg box. The box moves a horizontal distance of 3.0 meters. The work done by the 20 N force is ...?

  1.     60 J
  2.     80 J
  3.     120 J
  4.     140 J
  5.     100 J

Question 2. Convert these to radian measure: (a) 30.0°, (b) 135°, (c) 1/4 revolution.

  1. (a) 0.501 rad; (b) 2.36 rad; (c)   or 1.05 rad
  2. (a) 0.524 rad; (b) 2.27 rad; (c)   or 1.57 rad       
  3. (a) 0.524 rad; (b) 2.36 rad; (c)   or 1.05 rad
  4. (a) 0.524 rad; (b) 2.36 rad; (c)   or 1.57 rad
  5. (a) 0.501 rad; (b) 2.27 rad; (c)   or 1.05 rad

Question 3. An arrow is shot into the air at an angle of 60.0° above the horizontal with a speed of 20.0 m/s. (a) What are the x- and y-components of the velocity of the arrow 3.0 s after it leaves the bowstring? (b) What is the displacement of the arrow in the y-direction during the 3.0-s interval?

  1. (a) 10.0 m/s and -12 m/s  (b) 6 m
  2. (a) 10.0 m/s and -12 m/s  (b) 8 m
  3. (a) 12.0 m/s and -10 m/s  (b) 8 m
  4. (a) 12.0 m/s and -10 m/s  (b) 6 m

Question 4. A roller coaster is towed up an incline at a steady speed of 0.50 m/s by a chain parallel to the surface of the incline. The slope is 3.0%, which means that the elevation increases by 3.0 m for every 100.0 m of distance along the surface. The mass of the roller coaster is 400.0 kg. Neglecting friction, what is the magnitude of the force exerted on the roller coaster by the chain?

  1. 510 N
  2. 205 N
  3. 120 N
  4. 335 N
  5. 80 N

Question 5. A runner runs three-quarters of the way around a circular track, of radius 60.0 m, when she collides with another runner and trips. (a) How far had the runner traveled on the track before the collision? (b) What was the magnitude of the displacement of the runner from her starting position when the accident occurred?

  1.  (a) 292 m (b) 78.6 m
  2.  (a) 265 m (b) 93.4 m
  3.  (a) 278 m (b) 86.8 m
  4.  (a) 283 m (b) 84.9 m

 

Reference no: EM1311617

Questions Cloud

Computation of net investment and net operating cash flows : Computation of net investment and net operating cash flows and what is the after-tax net operating cash flow for each of the five years
Calculating real gdp and price level : Compute the path of the economy, that is , calculate real GDP, the price level, the inflation rate and real money stock for each year until GDP I swithin 1% of the potential. (limit calculated values to 10 decimals points)
Value of the test statistic : Compute the value of the test statistic (to 2 decimals).
How much overhead was incurred for the month : Determine the overhead rate is 25 percent of raw materials used plus 50 percent of direct labor costs and How much overhead was incurred for the month?
Objective questions based on kinematics : Objective questions based on kinematics.
An individual''s perception on leadership : This paper elaborate an individual’s views on leadership. The main purpose of this paper for you to describe in your own words your leadership thoughts and philosophy
Describing name of parts of regression equation : Write down the name of 4 parts of the regression equation.
Considering hypothesis test : A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3.
Evaluate the cost of job order costing system : Evaluate the Cost of Job order costing system and The company made the following estimates at the beginning of the current year.

Reviews

Write a Review

 

Physics Questions & Answers

  Find out the initial speed of the bullet

The bullet passes right through and emerges on the other side with a speed of 100 m/s, and the saxophone is given a speed of 4.8 m/s.

  Magnitude of the centripetal acceleration of the satellite

A pipe open at one end has a fundamental frequency of 256 Hz. A second pipe,identical to first pipe, is shortened by cutting off a portion of the open end. When  both pipes vibrate at their fundamental frequencies, a beat frequency of 12 Hz is heard..

  What is the magnitude of the force on dipole

A package is dropped from a passing plane (moving in the horizantal direction) and produces a projectile motion as it is falling to the ground. If it takes the package only 32.12 seconds until it hits the ground, how far above the ground was the plan..

  Establish steady-state electric field inside nichrome wire

Establish steady-state electric field inside Nichrome wire

  Find the minimum volume of concrete

Find the minimum volume of concrete (y = 23.6 kN/m3) needed to keep the gate (1 m wide) in a closed position; l = 2 m. Note the hinge at the bottom of the gate. Explain briefly.

  Find out the potential difference between r2 and r1

Find out the potential difference between r2 and r1

  What would be the result of a measurement

A crate of 31.9- tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 345. After that you must reduce your push to 247 to keep it moving at a..

  What is the wavelength of the incident beam

A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wave-lengths are observed while the hydrogen relaxes back to the ground state. What is the wavelength of the incident beam.

  How long is the string

Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift . If the tangential acceleration of a yo-yo at the en..

  What sort of interference does the person sense

Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What sort of interference does the person sense.

  What is the acceleration of satellite

A 2,700-kg satellite is in a circular orbit around a planet. The satellite travels with a constant speed of 6,270 m/s. The radius of the circular orbit is 8.72 × 10^6 m. What is the acceleration of satellite.

  What is newtons version of keplers third law

What is Newtons Version of Keplers Third Law

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd