Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. physics
  3. during hand-pumped rail car races, a speed of 27.9

During hand-pumped rail car races, a speed of 27.9 km/h has been achieved by teams of...

80.2K

Verified Solution

Question

Physics

During hand-pumped rail car races, a speed of 27.9 km/h has beenachieved by teams of four people. A car that has a mass equal to379 kg is moving at that speed toward a river when Carlos, thechief pumper, notices that the bridge ahead is out. All four people(each with a mass of 75.0 kg) simultaneously jump backward off thecar with a velocity that has a horizontal component of 4.00 m/srelative to the car. The car proceeds off the bank and falls intothe water a horizontal distance of 22.1 m from the bank.

a) How long is the time of fall of the rail car?

b) What is the horizontal component of the velocity of thepumpers when they hit the ground?

Answer & Explanation Solved by verified expert
3.7 Ratings (312 Votes)
Speed of the handpumped rail car is uci 279 kmh 270003600 ms 75 ms Mass of the rail car is mc 379 kg Mass of each pumper is mp 75 kg Thus total mass of the pumpers is mpt 300 kg Horizontal    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

11) Cusic Industries had the following operating results for 2019: sales = $33,510; cost of goods...

Finance
Q

The Alien Ethnographer Imagine that you are an ethnographer from a different planet. As part of...

Psychology
Q

An unmarked police car traveling a constant 85 km/h is passed by a speeder traveling 139...

Physics
Q

Application of FGF8 coated beads induce limb mesenchymal cell proliferation In contrast FGF8 coated beads...

Biology
Q

1 The circumference of circle E is 107 and the center is 3 4 a...

Geometry
Q

You and a friend are riding your bikes to a restaurant that you think is...

Calculus
Q

Expand In 14xy to rewrite as a sum difference or product of logarithms Choose all...

Calculus
Q

2 2 by by 5 5 1 Determine the values of x for 0 x...

Algebra
Q

A los bonos de Stilley Resources les quedan 20 aos para su vencimiento. El inters...

Accounting
Q

You are given the following information on Kaleb's Welding Supply: Profit margin 6.2 % Capital...

Finance
Q

The company I am researching is Edward Jones. Overview: For this task, you will assess...

Accounting
Q

The veld on a one year Trawy security is 51.500, and the two your reasury...

Finance