1. If M = 6.0 kg, what is the tension in string 1 and 2? 30 60 M

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1. If M = 6.0 kg, what is the tension in string 1 and 2?
30
M
2. Arn electron of mass 9.11 x 10 kg has an inilial speed of 3.00 x 10 m/s. Il Iravels in a straight line, and
ils speed increases lo 7.00 x 10 m/s in a dislance of 5.00 cIm. Assurming ils acceleralion is conslanl,
determine the torce cxcrted on the clectron.
3. Two blocks connected by a rope of negligible mass are
being dragged by a horizontal force. Suppose F = 68.0 N,
mı = 12.0 kg, m; = 18.0 kg, and the coefficient of kinetic
T
friction between each block and the surface is 0.100.
a. Draw a free-body diagram for each block.
b. Determine the acceleration of the system and
c. the tension Tin the rope.
4. In a Physics lab, Nene and Nono apply a rightward force to a 4.52-kg cart to accelerate it across a
horizontal surface at a rate of 1.28 m/s?, the coefficient of kinetic friction between the cart and floor is
0.43.
a. Determine the normal force on the cart.
b. Determine the friction force acting upon the cart.
c. Determine the applied force on the cart.
5. A 50-kg child riding a Ferris wheel (radius = 10 m) travels in a vertical circle. The wheel completes one
revolution every 10 s. What is the magnitude of the force on the child by the seat at the highest point on
the circular path?
6. A0.20-kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of
the circle the speed of the object is 4.5 m/s. What is the magnitude of the tension in the string at this
position?
Transcribed Image Text:1. If M = 6.0 kg, what is the tension in string 1 and 2? 30 M 2. Arn electron of mass 9.11 x 10 kg has an inilial speed of 3.00 x 10 m/s. Il Iravels in a straight line, and ils speed increases lo 7.00 x 10 m/s in a dislance of 5.00 cIm. Assurming ils acceleralion is conslanl, determine the torce cxcrted on the clectron. 3. Two blocks connected by a rope of negligible mass are being dragged by a horizontal force. Suppose F = 68.0 N, mı = 12.0 kg, m; = 18.0 kg, and the coefficient of kinetic T friction between each block and the surface is 0.100. a. Draw a free-body diagram for each block. b. Determine the acceleration of the system and c. the tension Tin the rope. 4. In a Physics lab, Nene and Nono apply a rightward force to a 4.52-kg cart to accelerate it across a horizontal surface at a rate of 1.28 m/s?, the coefficient of kinetic friction between the cart and floor is 0.43. a. Determine the normal force on the cart. b. Determine the friction force acting upon the cart. c. Determine the applied force on the cart. 5. A 50-kg child riding a Ferris wheel (radius = 10 m) travels in a vertical circle. The wheel completes one revolution every 10 s. What is the magnitude of the force on the child by the seat at the highest point on the circular path? 6. A0.20-kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 4.5 m/s. What is the magnitude of the tension in the string at this position?
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