QUESTION 6 A crate is sliding on a level surface with coefficient of kinetic friction, uk, while it is being pulled by a horizontal tension T. What is the acceleration of the crate? Hk T m а. a = T- Hkmg Ob. T-Hkm a = mg

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Question 3 A 18.0-kg crate is being pushed across a level frictionless horizontal floor by a force 150 N at an angle of 20.0° as shown. What is the magnitude of the acceleration of the crate, in m/s27 Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. (No unit is needed in your answer, it is already given in the question statement.) 20.0

mg m2g Example: In the figure below, two forces, pull a 50.0 kg crate. The magnitude of F is 215 N and it is applied at an angle 0 = 42.0°. The magnitude of F2 is 55.0 N. If the crate is accelerating to the right at a rate of 0.500 m/s2, find the friction between the crate and thé floor. Fiy= Fi sin42 = 215 sin 42 0 = 42° Fix F cos42 = 215 COs 42 W =mg

help pt1

Problem 015

With detailed FBD.

Problem 2 Assuming that the system is in equilibrium and the rope with T is horizontal, find the tensions T1, T2, T3. 60.0° T T3 10.0 kg

Plz use g = 9.8 m/s2

Three boxes are pulled along a horizontal frictionless floor by a constant horizontal pull P. The boxes are connected by very light horizontal strings having tensions T1 and T2 as shown in the figure. Which of the following statements about the tensions is correct? T₂ T₁ 10 20 N N 100 N O A.T1 > T2 OB.T1 = P OC. T2 = P O D. T2 > T1 P