1- A 4 kg box moves from the origin along x-axis under the influence of a variable net force whose graph is shown. If the speed of the box is 12 m/s at x=0 m, find its speed at x=8 m. Fx (N) a-13m/s b-15 m/s c-20 m/s d-25 m/s 2468 x (m) 10 N. 5N

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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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1- A 4 kg box moves from the origin along x-axis under the influence of a variable net force whose
graph is shown. If the speed of the box is 12 m/s at x=0 m, find its speed at x=8 m.
Fx (N)
a-13m/s
b-15 m/s
c-20 m/s
d-25 m/s
10 N.
5 N
2468
x (m)
2 A 6 kg block is moving on a rough horizontal surface (μ-0.67) toward a relaxed spring with force
constant k-200 N/m that is attached to a wall, as shown in the figure. Find the speed of the block
just before it hits the spring if the block compresses the spring a maximum distance of 20 cm.
шиши
a- 3m/s
b- 5 m/s
c- 2 m/s
d- 4 m/s
Transcribed Image Text:1- A 4 kg box moves from the origin along x-axis under the influence of a variable net force whose graph is shown. If the speed of the box is 12 m/s at x=0 m, find its speed at x=8 m. Fx (N) a-13m/s b-15 m/s c-20 m/s d-25 m/s 10 N. 5 N 2468 x (m) 2 A 6 kg block is moving on a rough horizontal surface (μ-0.67) toward a relaxed spring with force constant k-200 N/m that is attached to a wall, as shown in the figure. Find the speed of the block just before it hits the spring if the block compresses the spring a maximum distance of 20 cm. шиши a- 3m/s b- 5 m/s c- 2 m/s d- 4 m/s
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