College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:2. A 5.00-kg rock piece is released from rest at
the top of a 2.50-m-long ramp, reaching a speed
of 1.75 m/s at the bottom. The ramp is inclined at
an angle of 30°. Calculate the coefficient of
kinetic friction between the rock and the ramp.
*Do not forget to draw the FBD*
Kinematic
VxVox + axt
1
x=x0+ x² + x²
voxt
v² = x + 2a, (x-xo)
1
x-xo=(vox + v)t
Equations
Vy = voy + ant
1
y
= 3 + Payt + ayt²
=
v=vy + 2a, (y - Yo)
10 = 1/2 (voy + v₂ ) t
y - yo =
139
(Heat
Newton's Laws of Motion
ΣF = 0
(Newton's 1st Law)
2 F = ma
(Newton's 2nd Law)
fsmax = Msn fk = Men
2.50 m
30°
g = 9.8 m/s²
weight = mass x g
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