31-35 31. Which quantity has both magnitude and direction?b. Massc. Speedd. Velocitya. Distance32. Which is a scalar quantity?a. forceb. energyc. displacementd. velocity33. Which is a vector quantity?a. timeb. workc. displacementd. velocity34. The maximum number of components that a single force may be resolved into isb. twoc. threed. unlimiteda. one35. The resultant of two concurrent forces is minimum when the angle between them isa. 0°b. 45°c. 90°d. 180°

Given that Vector and scalar quantities

Answered: 31. Which quantity has both magnitude…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter3: Vectors

Section: Chapter Questions

Problem 70PQ

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. A 3.0kg cannon ball is shot from a cannon at a speed of 20m/s. The cannon is oriented50 degrees above the horizontal and the cannon’s barrel is 8.0m above the ground. Youwant to position a mat that will catch the cannon ball.a. Determine how much time the cannon ball will spend in flight.b. Draw a force diagram for three points during the cannon ball’s flight (1) while itis being shot from the cannon, (2) when it is at its maximum height, and (3) whenit is half-way between the maximum height and the mat.c. Determine the horizontal distance from the end of the barrel where you shouldplace the mat so that it will catch the ball.d. How fast is the cannon ball moving just before it hits the mat?
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ans. a) 3.41 N a) What is the tension in the string? m/sec. The length of the string is 1.2 m. The mass of the ball is 400 g. b) Draw the force diagram for the forces on the ball. View from above 6. A person swings a ball on a string in a horizontal circle over his head. The speed of the ball is 3.2
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Please solve parts 1 and 2 and show calculations step by step.

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31. Which quantity has both magnitude and direction? b. Mass c. Speed d. Velocity a. Distance 32. Which is a scalar quantity? a. force b. energy c. displacement d. velocity 33. Which is a vector quantity? a. time b. work c.displacement d. velocity