Answered: 20N 30N What is the net force of the…

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20N 30N What is the net force of the box? O 50N, to the left O 10N, to the left O 50N, to the right 010 N to th

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 15CQ: A particle is moving to the right. (a) Can the force on it be acting to the left? If yes, what would...

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300 lb 100 lb 45° 30 400 lb 200 1b Figure 2-5
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a. Determine the magnitude of P and F (in N) if the y re sultant of the five forcesshown is 1000 N dire cted u 45 de grees North of East. F 830N 38 2 b. If the components of the re sultantforce are found 3 along the u-axis and a certain v-axis and it is known 35° that the component along the u-axisis 57O N at 35° 470n 37 South of East, what is the magnitude along the v- axis? 2.1 kN
A dime is placed at the edge of a table so it hangs over slightly. A quarter is slid horizontally on the table surface perpendicular to the edge and hits the dime head on. Which coin hits the ground first?
A particle is moving to the right. (a) Can the force on it be acting to the left? If yes, what would happen? (b) Can that force be acting downward? If yes, why?
Taking a frame attached to Earth as inertial, which of the following objects cannot have inertial frames attached to them, and which are inertial reference frames? (a) A car moving at constant velocity (b) A car that is accelerating (c) An elevator in free fall (d) A space capsule orbiting Earth (e) An elevator descending uniformly
While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?
Check Your Understanding Suppose that Balto in Example 2.10 leaves the game to attend to more important matter, but Astro Clifford and Dug continue playing. Astro and Clifford’s pull on the toy does not change, but Dug rims around and bites on the toy in a different place. With how big a force and in what direction must Dug pull on the toy now to balance out the combined pulls from Clifford and Astro? Illustrate this situation by drawing a vector diagram indicating all forces involved.
A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30 north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?
A plumb bob bangs from the roof of a railroad car. The car rounds a circular track of radius 300.0 m at a speed of 90.0 km/b. At what angle relative to the vertical does the plumb bob hang?
The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the acceleration of the protons (m=1.671027kg)that move around the accelerator at 5of the speed of light? (The speed of light is v=3.00108m/s .) (b) What is the force on the protons?
There are two forces on the 14.4 kg crate in the overhead view of the figure below, but only one is shown. For F1= 3.6 N, a= 14.4 m/s², and 0=34.3°,The second force as a magnitude is: Select one: O a. 209.41 N Ob. 120.45 N Oc. 171.30 N Od. 43852.47 N A car travels around a horizontal bend of radius 169.6 m at a constant speed. If the coefficient of the static friction between the road and car tyres is us = 3.7, What is the magnitude of car's acceleration (m/s) when stion 9 yet wered the car is negotiating the bend at the maximum allowed speed? arked out of Home PrtScn F8 F7 F6 F5 F4 F2 F3 F1 & #3 8A9 5 0 6 7 7 V 3. 2 r 3 P 1 Y!U W %24