1. Starting from rest a block of mass m is pushed up a frictionless slope of angle 0 by a horizontal force of magnitude F. h F m a. Draw a free body diagram for mass m. b. What work is done on the block? Write down the work-kinetic energy theorem ( eq. 9.13) for the block and simplify. c. What forces act on the block? Write down the work done by these forces using your free-body diagram and eq. 9.17 d. Using work and energy, find a symbolic expression for the block's speed when it is at height h above the bottom of the slope.
1. Starting from rest a block of mass m is pushed up a frictionless slope of angle 0 by a horizontal force of magnitude F. h F m a. Draw a free body diagram for mass m. b. What work is done on the block? Write down the work-kinetic energy theorem ( eq. 9.13) for the block and simplify. c. What forces act on the block? Write down the work done by these forces using your free-body diagram and eq. 9.17 d. Using work and energy, find a symbolic expression for the block's speed when it is at height h above the bottom of the slope.
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Just need answer to part B, C, and D
Eq 9.13: ΔKtotal = Wtotal
Eq 9.17: W = F (Δr) cos θ
![1. Starting from rest, a block of mass m is pushed up a frictionless slope of angle θ by a horizontal force of magnitude F.
[Diagram depicting a block of mass m on an inclined plane. The force F is applied horizontally, and the incline has a height h.]
a. Draw a free body diagram for mass m.
b. What work is done on the block? Write down the work-kinetic energy theorem (eq. 9.13) for the block and simplify.
c. What forces act on the block? Write down the work done by these forces using your free-body diagram and eq. 9.17.
d. Using work and energy, find a symbolic expression for the block’s speed when it is at height h above the bottom of the slope.
e. If F = 25.0 N, m = 5.0 kg, h = 2.0 m, and θ = 20°, what is the speed of the block at the top of the slope? What happens in the limit as h → 0? Does this make sense?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F26e64fdc-bb72-40e8-a24d-6ce16ca7b59d%2F80084ea3-c9e2-458a-b5d2-fddc9ce9879b%2Fkfpdh4_processed.png&w=3840&q=75)
Transcribed Image Text:1. Starting from rest, a block of mass m is pushed up a frictionless slope of angle θ by a horizontal force of magnitude F.
[Diagram depicting a block of mass m on an inclined plane. The force F is applied horizontally, and the incline has a height h.]
a. Draw a free body diagram for mass m.
b. What work is done on the block? Write down the work-kinetic energy theorem (eq. 9.13) for the block and simplify.
c. What forces act on the block? Write down the work done by these forces using your free-body diagram and eq. 9.17.
d. Using work and energy, find a symbolic expression for the block’s speed when it is at height h above the bottom of the slope.
e. If F = 25.0 N, m = 5.0 kg, h = 2.0 m, and θ = 20°, what is the speed of the block at the top of the slope? What happens in the limit as h → 0? Does this make sense?
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