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College Physics
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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13 please using by this formula sheet easy way to explain
v2 Circular motion: a = R W Pavr = At Fast = ma; Weight: F = mg, ; g = 9.8 m/s²; 1 (Kinetic energy: K = -m v²; 2 Potential energy: Ug = mgy E = E E = U+K Rotational motion: 1 rev = 2n rad; V = 0r; = m?r; at = ar; a, = 0 = 0o + at; 0 = 0o t+ 20a = 0² - mo² K=-To t =rFsing; T =rxF; Στ-Ια; Ipointmass = mr? 1 Icy= 2 mR 2 Idisk = mR 2 1 +Rin Ihoop = mR? 1 Irod(center) = 1 Ired(end) = mL 3 2 Iball = mR? 2 Ishell = mR? 3 12 mL? work: W=t0; K--lo ? I= Icom + MD? P- dW dt 2 W = W Pavr = At Rolling: Veom = Ro K = 2 m Veom 2 2 T= f,R F,max = H,Fn Incline: F=mgsin0 F=mgcos0 Angular momentum; Lpolnt mass =m rxv L=mrvsin 0; L=m (r,vy - ryV,)k L= Io LI = Lr I, 01 =I 202 m,X1+m2X2 X com = miyi+m2y2 m, +m2 y com = m1 +m2
Transcribed Image Text:v2 Circular motion: a = R W Pavr = At Fast = ma; Weight: F = mg, ; g = 9.8 m/s²; 1 (Kinetic energy: K = -m v²; 2 Potential energy: Ug = mgy E = E E = U+K Rotational motion: 1 rev = 2n rad; V = 0r; = m?r; at = ar; a, = 0 = 0o + at; 0 = 0o t+ 20a = 0² - mo² K=-To t =rFsing; T =rxF; Στ-Ια; Ipointmass = mr? 1 Icy= 2 mR 2 Idisk = mR 2 1 +Rin Ihoop = mR? 1 Irod(center) = 1 Ired(end) = mL 3 2 Iball = mR? 2 Ishell = mR? 3 12 mL? work: W=t0; K--lo ? I= Icom + MD? P- dW dt 2 W = W Pavr = At Rolling: Veom = Ro K = 2 m Veom 2 2 T= f,R F,max = H,Fn Incline: F=mgsin0 F=mgcos0 Angular momentum; Lpolnt mass =m rxv L=mrvsin 0; L=m (r,vy - ryV,)k L= Io LI = Lr I, 01 =I 202 m,X1+m2X2 X com = miyi+m2y2 m, +m2 y com = m1 +m2
SAMPLE EXAM 3 PHYSICS 111 SPRING 2022 12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s 13. A 2-kg block is placed at the top of a 5-m high, frictionless ramp and is released from rest. At the bottom of the ramp the 2-kg block collides with a 1-kg block that is initially at rest. The blocks stick together. What is the velocity of the blocks after the collision? A) 3.3 m/s B) 6.6 m/s C) 9.9 m/s D) 10.10 m/s E) There is not enough information given 14. A potential energy function is given below. At what point would an object experience a force in the positive x direction? a c d A) a B) b С) с D) d E) in the region from 0 to a, and from c to infinity 15. A 3-kg box is moving at 6.0 m/s atop a hill that is 5.0 m above a flat frictionless surface. It descends the hill (also frictionless) and at the bottom of the hill contacts an ideal spring, which compresses 1.53 m before stopping. What is the spring constant k ? A) 172 N/m B) 225 N/m C) 344 N/m D) 450 N/m E) 980 N/m
Transcribed Image Text:SAMPLE EXAM 3 PHYSICS 111 SPRING 2022 12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? A) 4 m/s and 10 m/s B) 6 m/s and 12 m/s C) 12 m/s and 6 m/s D) 8 m/s and -8 m/s E) 10 m/s and -4 m/s 13. A 2-kg block is placed at the top of a 5-m high, frictionless ramp and is released from rest. At the bottom of the ramp the 2-kg block collides with a 1-kg block that is initially at rest. The blocks stick together. What is the velocity of the blocks after the collision? A) 3.3 m/s B) 6.6 m/s C) 9.9 m/s D) 10.10 m/s E) There is not enough information given 14. A potential energy function is given below. At what point would an object experience a force in the positive x direction? a c d A) a B) b С) с D) d E) in the region from 0 to a, and from c to infinity 15. A 3-kg box is moving at 6.0 m/s atop a hill that is 5.0 m above a flat frictionless surface. It descends the hill (also frictionless) and at the bottom of the hill contacts an ideal spring, which compresses 1.53 m before stopping. What is the spring constant k ? A) 172 N/m B) 225 N/m C) 344 N/m D) 450 N/m E) 980 N/m
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