1. 5. What is the tension on the rope? A 120 N trash can is pulled at constant s
ID: 3279590 • Letter: 1
Question
1. 5. What is the tension on the rope? A 120 N trash can is pulled at constant speed by a force of 25 N as shown below. How large is the force of friction impeding the motion of the trash can? across the sidewalk 25 N Use the following information for the next hwo questions 2. What is the coefficient of friction between the trash can and the sidewalk in the problem above. Use the following information for the next five questions: Cord i Cord 2 Cord 3 A winch pulls a crate of oranges (400 kg) up an incline (35o with the horizontal) by maintaining a tension on a rope over a pulley. The crate is moving up at a constant speed 0.2 m/s. There is no friction. (Use g = 10 N/kg.) 6. Four blocks are pulled to the right with a force of 80 N. What is the acceleration of the 2 kg block? 7. What are the tensions in cords 1, 2 and 3? 350 3. What is the normal force on the crate? What is the component of the gravitational force parallel to the surface on which the crate sits? 4.Explanation / Answer
6) total mass = 10+5+8+2 = 25 kg
a = F/m = 80/25= 3.2 m/s^2
7) T1 = m1a = 10*3.2 = 32 N
T2= (m1+m2) a = (10+5) 3.2 = 48N
T3= (m1+m2+m3) a = (10+5+8) 3.2=73.6 N
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