Question: In a water-tank test involving the launching of a small model boat, the models initial horizontal velocity is 20 ft/s and its horizontal acceleration varies

In a water-tank test involving the launching of a small model boat, the model’s initial horizontal velocity is 20 ft/s and its horizontal acceleration varies linearly from − 40 ft/s2 at t = 0 to − 6 ft/s2 at t = t1 and then remains equal to −6 ft/s2 until t = 1.4 s. Knowing that v = 6 ft/s when t = t1, determine
(a) The value of t1,
(b) The velocity and position of the model at t = 1.4 s.

Step by Step Solution

★★★★★

3.36 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Sketch the at curve as shown a a fts G 40 A A t I h Vo 20 fts v 6 fts 4 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

4-E-M-E-VM (1446).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A swimming pool is 20 ft wide and 40 ft long and its bottom is an inclined plane, the shallow end having a depth of 3 ft and the deep end, 9 ft. If the pool is full of water, find the hydrostatic...

A swimming pool is 20 ft wide and 40 ft long and its bottom is an inclined plane, the shallow end having a depth of 3 ft and the deep end, 9 ft. If the pool is full of water, estimate the hydro...

An inverted cone is placed in a water tank as shown. If the weight of the cone is 16.5 N, what is the tensile force in the cord connecting the cone to the bottom of the tank? 40 cm 10 cm 20 cm Water...

RESEARCH PROPOSAL An exploratory study into the Financial Challenges faced by SMMEs at the uMgungundlovu Region 9.6 Pilot Study Define the term pilot study and explain the benefits/ importance of...

ANSWER ALL QUESTIONS. BE SURE TO ANSWER 2 -1 C What is the difference between the macroscopic and microscopic forms of energy? 2-2C What is total energy? Identify the different forms of energy that...

I need help with this lab. Please answer questions for pages 4-7. Freefall Purpose: We will measure the value of 'little g', or the acceleration due to gravity on the surface of Earth. The particular...

Please I need help with the questions for Calculations (Part ), Calculations (Part 2), the graph, and questions 1-2 on the last page. THE DATA TO DO THE CALCULATIONS ARE PROVIDED IN THE TABLES. THATS...

CHAPTER 9 Hypothesis Tests CONTENTS 9.4 POPULATION MEAN: UNKNOWN One-Tailed Test Two-Tailed Test Summary and Practical Advice 9.5 POPULATION PROPORTION Summary 9.6 HYPOTHESIS TESTING AND DECISION...

For this case study can you double check if my answers are correct and if my calculations are correct and my format is correct? Identify all the relevant hypotheses. (Hint: There is a hypotheses...

1. What is the primary reason for applying a finite population correction coefficient? A. When the sample is a very small portion of the population, the correction coefficient is required. B. If you...

Suppose that X1, . . . , Xn form a sequence of n Bernoulli trials for which the probability p of success on any given trial is unknown (0 p 1), and let T = Determine the form of the estimator...

Analyze major ethical issues in marketing research. Marketing research plays a crucial role in shaping the decisions of businesses and organizations, but it can also raise important ethical issues...

All argumentative essays call for extensive research, and not having enough evidence to support your claim can make your paper fall short of the required standards. The right way to save time at this...

Marigold Company purchased equipment on January 1, 2018 at a total invoice cost of $341000 additional costs of $7000 for freight and $25000 for installation were incurred The equipment has an...

Hybrid Ltd. purchased equipment on January 1, 2019, for $900,000, estimating a six-year useful life and no residual value. In 2019 and 2020, Hybrid depreciated the asset using the straight-line...

Ahat is the major frodeuh. Br Navet 7 2)

Writing the Code You were recently hired as the Managing Editor for News and Current Affairs at a new radio station. The Board of Directors has mandated you to draft a Code of Conduct/Ethics for news...

Equipment with a cost of $192,000 has an estimated salvage value of $18,000 and an estimated life of 4 years or 12,000 hours. It is to be depreciated by the straight-line method. What is the amount...

Identify each reaction catalyzed by (a) A nucleotidase; (b) A phosphorylase; (c) A phosphoribosyltransferase. Guanine A B GMP E F LL D C Guanosine

An insulated mixing chamber receives 4 lbm/s R-134a at 150 lbf/in.2, 220 F in a line with low velocity. Another line with R-134a as saturated liquid 130 F flows through a valve to the mixing chamber...

An air compressor takes in air at 14 lbf/in.2, 60 F and delivers it at 140 lbf/in.2, 1080 R to a constant-pressure cooler, which it exits at 560 R. Find the specific compressor work and the specific...

The following data are for a simple steam power plant as shown in Fig. P6.99. State 6 has x6 = 0.92, and velocity of 600 ft/s. The rate of steam flow is 200 000 lbm/h, with 400 hp input to the pump....

please answer all the sub Q at one time. I will post this question many times. Question 1 (14 marks) Call centers play an important role in managing day-to-day business communications with customers....

Emperors Clothes Fashions can invest $6 million in a new plant for producing invisible makeup. The plant has an expected life of 5 years, and expected sales are 7 million jars of makeup a year. Fixed...

D Question 3 2.5 pts Given the following sample, calculate the z score for a value of -6,131. Data 8,711 3,349 -5,254 W -919 4,052 820 -1,725 O 0.2953 O 0.1330 O -0.1630 O -0.6402 O -0.4732 O -1.6328