Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Find displacement, velocity and acceleration.

1. Displacement is which of the following types of quantities?
a. vector
b. scalar
c. magnitude
d. Dimensional

2. A bird, accelerating from rest at a constant rate, experiences the displacement of 28 m in 11 s. What is an average velocity?
a. 1.7 m/s
b. 2.5 m/s
c. 3.4 m/s
d. 4.2 m/s
e. Zero

3. Jeff throws a ball straight up. For which situation is the vertical velocity zero?
a. on the way up
b. at the top
c. on the way back down
d. both a and c are correct
e. none of the above

4. A railroad train travels forward along a straight track at 80 m/s for 1.000 m and then travels at 50.0 m/s for the next 1.000 m. What is an average velocity?
a. 65.0 m/s
b. 61.5 m/s
c. 63.7 m/s
d. 70.0 m/s
e. 68.3 m/s

5. A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s. What is its acceleration?
a. 0.21 m/s2
b. 0.46 m/s2
c. 0.64 m/s2
d. 0.78 m/s2
e. 0.97 m/s2


6. A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8s. What distance will the sports car travel during the 8 s acceleration period? (Hint: First convert speed to m/s.)
a. 55.5 m
b. 77.7 m
c. 111 m
d. 222 m
e. 268 m

7. A rock is thrown straight up with an initial velocity of 19.60 m/s. What time interval elapses between the rocks's being thrown and its return to an original launch point? (Acceleration due to gravity is 9.80 m/s2.)
a. 4.00 s
b. 5.00 s
c. 8.00 s
d. 10.0 s
e. 15.0 s

8. A baseball is released at rest from the top of Washington Monument. It hits the ground after falling for 6s. What was the height from which the ball was dropped? (g = 9.8 m/s2 and assume air resistance is negligible)
a. 1.5 102 m
b. 1.8 102 m
c. 1.1 102 m
d. 2.1 102 m
e. 2.5 102 m

9. A ball is thrown vertically upwards at 19.60 m/s. For its complete trip (up and back down to the starting position), its average speed is:
a. 19.6 m/s.
b. 9.80 m/s.
c. 4.90 m/s.
d. 3.15 m/s.
e. Not given.

10. A jogger runs halfway around a circular path with a radius of 60 m. What, respectively, are the magnitude of the displacement and the distance jogged?
a. 60 m, 188 m
b. 120 m, 188 m
c. 0 m, 377 m
d. 120 m, 377 m
e. 60 m, 377 m

Physics, Academics

  • Category:- Physics
  • Reference No.:- M917985

Have any Question? 


Related Questions in Physics

What do you think are the two most important functions of

What do you think are the two most important functions of the family? Give at least one example for each function to demonstrate why you think it is important to a person's overall life outcomes. Explain whether you thin ...

Discuss the factors involved in food production by hominids

Discuss the factors involved in food production by hominids. Include information relating to settled agriculture, domestication of vegetative and animal forms, and pastoralism. Explain how pyramids were constructed and f ...

One of the important advantages in using spice to solve

One of the important advantages in using SPICE to solve transmission-line problems is that it will readily give the solution for problems that would be difficult to solve by hand. For example, consider the case of two CM ...

Let x be an ensemble with px 01 02 03 04 the ensemble is

Let X be an ensemble with PX = {0.1, 0.2, 0.3, 0.4}. The ensemble is encoded using the symbol code C = {0001, 001, 01, 1}. Consider the code word corresponding to x ∈ X N , where N is large. (a) Compute the entropy of th ...

F every transmitted packet were created by adding together

f every transmitted packet were created by adding together source packets at random with probability 1/2 of each source packet's being included, show that the probability that K' = K received packets suffice for the opti ...

Si gaas and cds crystals are exposed to a yellow light of

Si, GaAs and CdS crystals are exposed to a yellow light of wavelength 5500A and intensity 10 12  photons/cm 2 -sec. Verify that the photon energy Is 2.25eV. How many electron-hole pairs are generated per unit volume per ...

The potential energy of an object attached to a spring

The Potential Energy of an object attached to a spring whose elastic constant is K is given by the formula. The quantity x is the displacement from the equilibrium condition. Assume that K = 30 N/m and x = 0.7 m: Determi ...

1 if the above sample is n-type and the electron

1. If the above sample is n-type and the electron concentration at the location x 1  is N(x 1 )=10 16 cm -3 , what is the drift current density in A/cm 2 ? What is the concentration gradient at this point, dN(x 1 )/dx? 2 ...

You drop a 281-g silver figure of a polar bear into the

You drop a 281-g silver figure of a polar bear into the 231-g aluminum cup of a well-insulated calorimeter containing 253 g of liquid water at 24.5°C. The bear's initial temperature is 96.3°C. What is the final temperatu ...

Read the article found Read the article found here:

Read the article found here: https://www.washingtonpost.com/news/energy-environment/wp/2016/10/04/the-paris-climate-agreement-is-entering-into-force-now-comes-the-hard-part/ 1) What goal do the Paris agreements set for t ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen