Particle P of mass 4 kg is placed on the smooth inclined surface of a triangular block B of mass 20 kg as shown. If the system is released from rest, determine velocities of P and B when P reaches the bottom. Neglect the size of particle P and the friction at all surfaces. Ispeed Vp|B Relative + Entrained -> 2 m В ニ VB 30° ニ Z-30 Nelo ニ (Velet-30 -va)• (Vot-30 - + Vる Vp. Yp ニ 2 VPlo VB Cos 30° ニ
Particle P of mass 4 kg is placed on the smooth inclined surface of a triangular block B of mass 20 kg as shown. If the system is released from rest, determine velocities of P and B when P reaches the bottom. Neglect the size of particle P and the friction at all surfaces. Ispeed Vp|B Relative + Entrained -> 2 m В ニ VB 30° ニ Z-30 Nelo ニ (Velet-30 -va)• (Vot-30 - + Vる Vp. Yp ニ 2 VPlo VB Cos 30° ニ
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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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For the vector Vp/b
Vp/b (-30) = Vp/b cos(-30) i + Vp/b sin(-30) j
where the j component is neglected when using conservation of linear momemtum.
Vp/b (-30) = Vp/b cos(-30) i
why does Vp/b(-30degree) dot Vp/b (-30degree) = (Vp/b)2
What happens to the cos(-30)?
Transcribed Image Text:4. Particle P of mass 4 kg is placed on the smooth inclined surface of a
triangular block B of mass 20 kg as shown. If the system is released from
rest, determine velocities of P and B when P reaches the bottom.
Neglect the size of particle P and the friction at all surfaces.
P
Ispeed
♥PIB
2 m
Entruined
В
Relative t
VB
30°
Ve
ニ
L-30°
Nelo
ニ
v = = (,tw -vi)• (V-3i - )
- Vg>
(Velat-30°
d.
2
(Nelo
2 Vels
Vg Cos 30° + VÀ
|
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