L04b - 1 / 11 Physics 111 Lecture 4b The test of a...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 / 11 Physics 111 Lecture 4b The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function. F. Scott Fitzgerald Solving problems using Newtons Laws Examples Steps Tips Friction Static Max Static S to K Question Examples 2 / 11 Example 1: Olivia is pulling a two-wagon train with a 100-N force. The wagons have a mass of 2 . 5 and 3 . 7 kg, and Olivias string forms a 30 o angle with the ground (a) What is the acceleration of the train? (b) What is the tension T of the string that links the two wagons? (c) If she starts from rest, how far does Olivia go after 15 s? Example 2: Olivia is pushing a sled of mass m = 5 . kg up a snowy, frictionless incline that forms an angle = 10 o with the horizontal (see figure). The magnitude of Olivias push is F = 40 N. (a) What is the acceleration of the sled? (b) What is the normal force of the incline on the block? Solving problems using Newtons Laws Examples Steps Tips Friction Static Max Static S to K Question Examples 3 / 11 Example 3: An elevator of mass m = 850 kg has a counterweight of mass m 2 = 1000 kg (see figure). The elevator is carrying four passengers. The total mass of the elevator and the passengers is...
View Full Document

Page1 / 11

L04b - 1 / 11 Physics 111 Lecture 4b The test of a...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online