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)...
Related questions
Question
Q 25 please
Transcribed Image Text:Q21: Suppose three blocks are in contact with one another on a frictionless, horizontal surfa
A horizontal force F is applied to m, The boxes accelerate to the right at 8 m/s²
Take m₁ = 8.0 kg, ma = 18 kg, and F = 320 N. Find m₂
A. 14 kg
B. 12 kg
C. 13 kg
D. 16 kg
Q22: A 2.0 kg object starts from rest at t=0. A constant resultant force of (2.01+ 2.01) N
on the object for 3.0 s. What is the magnitude of the object's velocity at the end of
interval?
A. 5,66 m/s
B. 2.83 m/s
C. 4.24 m/s
D. 7.07 m/s
Q23: What are the x-component and the y-components of
vector c?
A. (2,-4) cm
B. (-4,2) cm
C. (-3,1) cm
D. (1,-3) cm
Q24: A ring is pulled on by three forces as shown. The ring is
not moving. What is the magnitude of force F?
A. (20 sin 0) N
B. (20 cos 8) N
C. (10 sin 8) N
D. (10 cos 0) N
Q25: Consider the vectors shown.
What is the dot product C-D?
A. (120 cos 78°) m²
B. (120 cos 25°) m²
C. (120 cos 53°) m²
D. (120 cos 62°) m²
-4
-2 -1
10 N
Ď (10.0 m)
℃ (12.0 m)
25.0
53.0
y (cm)
0
1-
30.0
-x (cm)
10 N
B (15.0 m)
A (8.00m)
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