A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the figure. The string pulls on the 15-kg block parallel to the surface of the ramp. Find the magnitude of the acceleration of the 19-kg block after the system is gently released? A) 4.0 m/s2 B) 3.8 m/s2 C) 4.2 m/s2 D) 4.5 m/s2 Final formula: 15 kg 19 kg 20

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 3P: A toy rocket engine is securely fastened to a large puck that can glide with negligible friction...
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A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very
light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the
figure. The string pulls on the 15-kg block parallel to the surface of the ramp. Find the magnitude of the
acceleration of the 19-kg block after the system is gently released?
6.
A) 4.0 m/s2
B) 3.8 m/s2
C) 4.2 m/s2
D) 4.5 m/s2
Final formula:
15
kg
19
kg
20°
Required steps:
1) Draw free body diagram
2) Choose reference frame
3) Find vectors components
4) Apply Newton's 2nd law
5) Solve for the acceleration.
6) Check units
7) Substitute numerical values
Transcribed Image Text:A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the figure. The string pulls on the 15-kg block parallel to the surface of the ramp. Find the magnitude of the acceleration of the 19-kg block after the system is gently released? 6. A) 4.0 m/s2 B) 3.8 m/s2 C) 4.2 m/s2 D) 4.5 m/s2 Final formula: 15 kg 19 kg 20° Required steps: 1) Draw free body diagram 2) Choose reference frame 3) Find vectors components 4) Apply Newton's 2nd law 5) Solve for the acceleration. 6) Check units 7) Substitute numerical values
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