21: Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown A horizontal force F is applied to m₂. The boxes accelerate to the right at 8 m/s². Take m₁ = 8.0 kg, m, = 18 kg, and F = 320 N. Find m₂ A. 14 kg B. 12 kg C. 13 kg D. 16 kg tarts from rest at t-0. A constant resultant force of (2.01+ 2.01) N then acts inds of the object's velocity at the end of the 3.0 s

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Chapter13: Universal Gravitation
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221: Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown
A horizontal force F is applied to m₂. The boxes accelerate to the right at 8 m/s².
Take m₁ = 8.0 kg, m,- 18 kg, and F= 320 N. Find m₂
A. 14 kg
B. 12 kg
C. 13 kg
F
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 then acts
on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0 s
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 ?
A. (2,-4) cm
B. (-4,2) cm
C. (-3,1) cm
D. (1,-3) cm
lled on by three forces as shown. The ring is
de of force F?
y (cm)
10 N
1
-x (cm)
10N
Transcribed Image Text:221: Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown A horizontal force F is applied to m₂. The boxes accelerate to the right at 8 m/s². Take m₁ = 8.0 kg, m,- 18 kg, and F= 320 N. Find m₂ A. 14 kg B. 12 kg C. 13 kg F 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 then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0 s 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 ? A. (2,-4) cm B. (-4,2) cm C. (-3,1) cm D. (1,-3) cm lled on by three forces as shown. The ring is de of force F? y (cm) 10 N 1 -x (cm) 10N
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