Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Finding velocity and time for moving particle.

1. A particle moves along the x-axis with its position at time t given by x(t) = t3 - 2t + 4. Which of the following is the velocity at time t = 4?

a. 24
b. 46
c. 50
d. 60

2. An arrow is shot vertically upward. Its height p in feet above the ground after t seconds is given by p(t) = -16t2 + 160t + 384. How long does it take to reach its highest point?

a. 2 sec
b. 12 sec
c. 5 sec
d. 384 sec

Physics, Academics

  • Category:- Physics
  • Reference No.:- M917972

Have any Question? 


Related Questions in Physics

A pin is thrown tumbling in the air what is the probability

A pin is thrown tumbling in the air. What is the probability distribution of the angle θ 1 between the pin and the vertical at a moment while it is in the air? The tumbling pin is photographed. What is the probability di ...

An 8- to 12-page paper should be well developed and convey

An 8- to 12-page paper, should be well developed and convey your understanding of the readings and concepts. It should also adequately answer the question. Your paper should be organized, coherent, and unified; it should ...

The value of specific heat for copper is390jkgsdotcfor

The value of specific heat for copper is390J/kg⋅C°,for aluminun is900J/kg⋅C°,and for water is4186J/kg⋅C° What will be the equilibrium temperature when a 215 g block of copper at 245 °C is placed in a 155 g aluminum calor ...

A process is being developed to produce carbonated

A process is being developed to produce carbonated beverages. As part of this process, a wetted-wall absorption column of 2.0 m length will be used to dissolve carbon dioxide, CO 2 , gas into water. Pure mountain spring ...

A using a calculator or computer sketch the graph of y 2ex

(a) Using a calculator or computer, sketch the graph of y = 2ex + 5e-x for -3 ≤ x ≤ 3, 0 ≤ y ≤ 20. Observe that it looks like the graph of y = cosh x. Approximately where is its minimum? (b) Show algebraically that y = 2 ...

If we have checked the first few bits of xs with x and

If we have checked the first few bits of x (s) with x and found them to be equal, what is the probability that the correct entry has been retrieved, if the alternative hypothesis is that x is actually not in the database ...

1 a vertical cylindrical tank having a base diameter of 10

1. A vertical cylindrical tank having a base diameter of 10 m and a height of 5 m is filled to the top with water at 20°C. How much water will overflow if the water is heated to 80°C? 2. A liquid in a cylinder has a volu ...

Students should submit the exam at the beginning of the

Students should submit the exam at the beginning of the class.The exam will be conducted according to the policies outlined in the Northeastern University honor code. It is expected that you will work independently and i ...

A driver in a car originally moving at 129 ms applies the

A driver in a car, originally moving at 12.9 m/s, applies the brakes until the car comes to a stop. The car moves a distance of 34.8 m while braking. How much time did it take for the car to stop? Assume constant acceler ...

The saint louis arch can be approximated by using a

The Saint Louis Arch can be approximated by using a function of the form y = b - a cosh(x/a). Putting the origin on the ground in the center of the arch and the yaxis upward, find an approximate equation for the arch giv ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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