29. A box is sliding down an inclined plane as shown. The force of fric- tion is directed toward point Воx D (1) A (2) В (3). C (4) D A horizontal force of 15 newtons pulls a 5-kilogram block along a horizontal surface. If the force produces an acceleration of 2 meters per second2, the frictional force acting on the block is (1) 1N (2) 2 N (3) 5 N (4) 15 N
29. A box is sliding down an inclined plane as shown. The force of fric- tion is directed toward point Воx D (1) A (2) В (3). C (4) D A horizontal force of 15 newtons pulls a 5-kilogram block along a horizontal surface. If the force produces an acceleration of 2 meters per second2, the frictional force acting on the block is (1) 1N (2) 2 N (3) 5 N (4) 15 N
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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please help with question numbers 29 and 30
Transcribed Image Text:25. At a given location on the Earth's surface, which graph best repre-
sents the relationship between an object's mass (M) and weight (W)?
M
M
(1)
(2)
(3)
(4)
26. Two forces of 5 newtons and 10 newtons act on a 10-kilogram body
as shown. The magnitude of the body's acceleration will be
5 N
10 N
10'kg
(1) 50 m/s2
(2) 2.0 m/s2
(3) 1.5 m/s2
(4) 0.5 m/s2
27. If an object is moving north, the direction of the frictional force is
(3) east
(1) north
(2) south
(4) west
28. In order to keep an object weighing 20 newtons moving at constant
speed along a horizontal surface, a force of 10 newtons is required.
The force of friction between the surface and the object is
(1) 0N
(2) 10 N
(3) 20 N
(4) 30 N
29. A box is sliding down an inclined plane as shown. The force of fric-
tion is directed toward point
Воx
(1) A
(2) В
(3). C
(4) D
30. A horizontal force of 15 newtons pulls a 5-kilogram block along a
horizontal surface. If the force produces an acceleration of 2 meters
per second2, the frictional force acting on the block is
(1) 1N
(2) 2 N
(3) 5 N
(4) 15 N
53
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