Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
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Textbook Question
Chapter B.2, Problem 18P
Change 75.0 m/s to km/h.
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A crate with a mass of 74.0 kg is pulled up an inclined surface by an attached cable, which is driven by a motor. The crate moves a distance of 70.0 m along the surface at a constant speed of 3.3 m/s. The surface is inclined at an angle of 30.0° with the horizontal. Assume friction is
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(a) How much work (in kJ) is required to pull the crate up the incline?
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(b) What power (expressed in hp) must a motor have to perform this task?
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A 1.40-kg object slides to the right on a surface having a coefficient of kinetic friction 0.250 (Figure a). The object has a speed of v₁ = 3.50 m/s when it makes contact with a light spring (Figure b) that has a force constant of 50.0 N/m. The object comes to rest after the spring has been
compressed a distance d (Figure c). The object is then forced toward the left by the spring (Figure d) and continues to move in that direction beyond the spring's unstretched position. Finally, the object comes to rest a distance D to the left of the unstretched spring (Figure e).
d
m
v=0
-D- www
(a) Find the distance of compression d (in m).
m
(b) Find the speed v (in m/s) at the unstretched position when the object is moving to the left (Figure d).
m/s
(c) Find the distance D (in m) where the object comes to rest.
m
(d) What If? If the object becomes attached securely to the end of the spring when it makes contact, what is the new value of the distance D (in m) at which the object will come to…
Chapter B Solutions
Applied Physics (11th Edition)
Ch. B.2 - Change 20.0 km to m.Ch. B.2 - Change 2460 m to km.Ch. B.2 - Change 38.0 min to s.Ch. B.2 - Prob. 4PCh. B.2 - Prob. 5PCh. B.2 - Change 3.00 h to s.Ch. B.2 - Change 88.0 ft/s to mi/h.Ch. B.2 - Change 30.0 mi/h to ft/s.Ch. B.2 - Change 80.0 m/s to km/h.Ch. B.2 - Change 2.00 km/h to m/s.
Ch. B.2 - Prob. 11PCh. B.2 - Prob. 12PCh. B.2 - Change 54.0 ft3 to yd3.Ch. B.2 - Change 10.0 yd3 to ft3.Ch. B.2 - Change 0.0300 km to cm.Ch. B.2 - Change 5000 cm to km.Ch. B.2 - Change 3.00 km/h to m/s.Ch. B.2 - Change 75.0 m/s to km/h.Ch. B.2 - Prob. 19PCh. B.2 - Prob. 20PCh. B.2 - Change 65.3 m/s2 to km/h2.Ch. B.2 - Change 45.3 km/h2 to m/s2.Ch. B.2 - Change 24.2 m/s2 to ft/s2.
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