Answered

Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Suppose an adult blue whale is stranded on a beach. The whale, which lies parallel to the shore, is 15 m from water deep enough for it to swim away in. A group of people line up along the side of the whale to push it back into the ocean. If the whale’s weight is 1. 5 × 10 6 N, and the force of friction that must be overcome by the people is 0. 25 times the whale’s weight, how much work must the people do on the whale in order to return it to the ocean?

Sagot :

Answer:

W = F x    work done by force F thru distance X

F = w + .25 w = 1.25 w where w is the weight of the whale

x = 15 m       distance the whale must be pushed

W = 1.25 w * x

W = 1.25 * 1.5E6 N * 15 m = 18.75E6 N * 15 m = 2.81E7 joules

We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.