Ph101-08&09-1md2

Ph101-08&09-1md2 - Kuwait University – Science...

Info iconThis preview shows pages 1–2. 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
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Kuwait University – Science College – Physics Dept. – PHYS101 Fall 2008 (20-December-08) I Part I: Questions Choose the correct answer 1. A ball of mass m is connected to one end of a rope and rotates in a vertical circle of radius R . If the tension in the rope at point A is T and the speed of the ball at that point is v , then, (a) mg T = (b) R mv T 2 = (c) R mv mg T 2 + = (b) R mv mg T 2 − = 2. An object slides on a frictionless surface between points A and B at heights and h 2 h , respectively. If its speed at point A equals gh , then its speed at B equals, (a) gh 2 (b) gh 2 (c) gh (d) 2 gh 3. A conservative force is applied to a particle as it moves between points A and B. If the work done by this force along paths 1 and 2 equals W 1 and W 2 , respectively, then, (a) (b) 2 1 W W > 2 1 W W = (c) 2 1 = = W W (d) 2 1 W W − = 4. The system shown consists of two massless pulleys and a block of weight W . The magnitude of the applied force F r required to move the weight upward at constant speed is, (a) 3 W F = (b) W F 2 = (c) W F = (d) 2 W F = Part II: Problems Solve the following problems 1. A pilot of mass 80 kg drives an airplane in an arc of a vertical circle of radius 1 km as shown in...
View Full Document

Page1 / 5

Ph101-08&09-1md2 - Kuwait University – Science...

This preview shows document pages 1 - 2. Sign up to view the full document.

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