2.A non-uniform, 2.0 m long ladder weighing 400 N leans against a smooth vertical wall (no friction). The ladder makes an angle of 30º with the vertical to the ground. The coefficient of static friction at the ground is 0.3. A child with weight of 300 N can climb the ladder of 1.2 m before it starts to slide down.(a) The distance of the center of mass of the ladder from the contact point in the ground is _________(b) The normal force coming from the smooth vertical wall is _________ 3.Starting from rest, a uniform cylindrical wheel (I=M R2) with 1.0 m diameter is rotating under a constant angular acceleration of 3.0 rad/s2.(a) The magnitude of the centripetal acceleration of a point on the rim of the wheel at t = 4.0 s is ________(b) If the mass of the wheel is 40.0 kg, its angular momentum at t = 4.0 s is ________ 4.A 4.0 kg block, lying on a smooth table, is connected to another5.0 kg block by means of a weightless cord passing over, without slipping, a cylindrical pulley of 2.0 kg mass and 10.0 cm radius placed at the edge of the table. The system is released from rest at t = 0.(a) In 0.5s the 5.0 kg block will drop by _______(b) The tension in the part of the cord connected horizontally to the 4.0 kg block is ________ 5.A uniform circular wheel (I=M R2) with radius, R=1.0 m and mass, M=50.0 kg is spinning at 120 rev/min. At a particular moment of time (that we denote t=0) the wheel is subjected to a frictional force F= 20.0 N applied tangentially at its rim.(a) The magnitude of the angular velocity of the wheel (in rad/s) after t=25 s is _______(b) The number of revolutions done by the wheel after t=10 s is ________ * 00CollaborateInsertTableChartTextShapeMedia CommentName:Class:Date:PHYS-2113 Home Work # 2 Instructor: Dr. Orion ÇiftiaPlease, fill in the blanks with correct answers. Only the answers count. Keep 2 digits after thedecimal point when rounding numerical values.Problem1.A 8.0 m long, non-uniform beam weighing 750 N, supported by two weightless cables, is atrest in horizontal position, as shown. The cable on the right has a tension of T=375V3 N.(a) The location of the center of mass of the beam measured from its left end is(b) The tension T2 in the other cable is092.A non-uniform, 2.0 m long ladder weighing 400 N leans against a smooth vertical wall (nofriction). The ladder makes an angle of 30° with the vertical to the ground. The coefficient of static friction atthe ground is 0.3. A child with weight of 300 N can climb the ladder of 1.2 m before it starts to slide down.(a) The distance of the center of mass of the ladder from the contact point in the ground is(b) The normal force coming from the smooth vertical wall is3.Starting from rest, a uniform cylindrical wheel (I=M R²) with 1.0 m diameter is rotatingunder a constant angular acceleration of 3.0 rad/s2.(a) The magnitude of the centripetal acceleration of a point on the rim of the wheel at t = 4.0 s is(b) If the mass of the wheel is 40.0 kg, its angular momentum at t =4.0 s is4.A 4.0 kg block, lying on a smooth table, is connected to another 5.0 kg block by means of aweightless cord passing over, without slipping, a cylindrical pulley of 2.0 kg mass and 10.0 cm radius placedat the edge of the table. The system is released from rest at t= 0.(a) In 0.5s the 5.0 kg block will drop by(b) The tension in the part of the cord connected horizontally to the 4.0 kg block is5.A uniform circular wheel (I=M R2) with radius, R=1.0 m and mass, M-50.0 kg is spinning at120 rev/min. At a particular moment of time (that we denote t=0) the wheel is subjected'to a frictional force F= 20.0 N applied tangentially at its rim.(a) The magnitude of the angular velocity of the wheel (in rad/s) after t-25 s is(b) The number of revolutions done by the wheel aftert=10 s isMacBook AirF2F4F5F8%23243.5.9.7.8.

Given Length of the ladder = 2 m Weight of the ladder = 400 N The ladder makes an angle of 30º with…

Answered: 2.A non-uniform, 2.0 m long ladder…

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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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2.A non-uniform, 2.0 m long ladder weighing 400 N leans against a smooth vertical wall (no friction). The ladder makes an angle of 30º with the vertical to the ground. The coefficient of static friction at the ground is 0.3. A child with weight of 300 N can climb the ladder of 1.2 m before it starts to slide down.

(a) The distance of the center of mass of the ladder from the contact point in the ground is _________

(b) The normal force coming from the smooth vertical wall is _________

3.Starting from rest, a uniform cylindrical wheel (I=M R2) with 1.0 m diameter is rotating under a constant angular acceleration of 3.0 rad/s2.

(a) The magnitude of the centripetal acceleration of a point on the rim of the wheel at t = 4.0 s is ________

(b) If the mass of the wheel is 40.0 kg, its angular momentum at t = 4.0 s is ________

4.A 4.0 kg block, lying on a smooth table, is connected to another5.0 kg block by means of a weightless cord passing over, without slipping, a cylindrical pulley of 2.0 kg mass and 10.0 cm radius placed at the edge of the table. The system is released from rest at t = 0.

(a) In 0.5s the 5.0 kg block will drop by _______

(b) The tension in the part of the cord connected horizontally to the 4.0 kg block is ________

5.A uniform circular wheel (I=M R2) with radius, R=1.0 m and mass, M=50.0 kg is spinning at 120 rev/min. At a particular moment of time (that we denote t=0) the wheel is subjected to a frictional force F= 20.0 N applied tangentially at its rim.

(a) The magnitude of the angular velocity of the wheel (in rad/s) after t=25 s is _______

(b) The number of revolutions done by the wheel after t=10 s is ________

* 00
Collaborate
Insert
Table
Chart
Text
Shape
Media Comment
Name:
Class:
Date:
PHYS-2113 Home Work # 2 Instructor: Dr. Orion Çiftia
Please, fill in the blanks with correct answers. Only the answers count. Keep 2 digits after the
decimal point when rounding numerical values.
Problem
1.
A 8.0 m long, non-uniform beam weighing 750 N, supported by two weightless cables, is at
rest in horizontal position, as shown. The cable on the right has a tension of T=375V3 N.
(a) The location of the center of mass of the beam measured from its left end is
(b) The tension T2 in the other cable is
09
2.
A non-uniform, 2.0 m long ladder weighing 400 N leans against a smooth vertical wall (no
friction). The ladder makes an angle of 30° with the vertical to the ground. The coefficient of static friction at
the ground is 0.3. A child with weight of 300 N can climb the ladder of 1.2 m before it starts to slide down.
(a) The distance of the center of mass of the ladder from the contact point in the ground is
(b) The normal force coming from the smooth vertical wall is
3.
Starting from rest, a uniform cylindrical wheel (I=M R²) with 1.0 m diameter is rotating
under a constant angular acceleration of 3.0 rad/s2.
(a) The magnitude of the centripetal acceleration of a point on the rim of the wheel at t = 4.0 s is
(b) If the mass of the wheel is 40.0 kg, its angular momentum at t =4.0 s is
4.
A 4.0 kg block, lying on a smooth table, is connected to another 5.0 kg block by means of a
weightless cord passing over, without slipping, a cylindrical pulley of 2.0 kg mass and 10.0 cm radius placed
at the edge of the table. The system is released from rest at t= 0.
(a) In 0.5s the 5.0 kg block will drop by
(b) The tension in the part of the cord connected horizontally to the 4.0 kg block is
5.
A uniform circular wheel (I=M R2) with radius, R=1.0 m and mass, M-50.0 kg is spinning at
120 rev/min. At a particular moment of time (that we denote t=0) the wheel is subjected'to a frictional force F
= 20.0 N applied tangentially at its rim.
(a) The magnitude of the angular velocity of the wheel (in rad/s) after t-25 s is
(b) The number of revolutions done by the wheel aftert=10 s is
MacBook Air
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Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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