Two balls are tied by a massless inextensible rope over a pulley that is situated on top of a wedge. Ball 1 of mass 30kg is initially at the top of the wedge, while Ball 2 of mass 5kg is at the ground. Height of the wedge is 10m and the length of the rope is 25m. The side of the wedge has friction. The co-efficient of friction is 0.5. Ball 1 slides down without rolling over the side of the wedge. When the first ball reaches the bottom, the second ball reaches the top of

Two balls are tied by a massless inextensible rope over a pulley that is situated on top of a wedge. Ball 1 of mass 30kg is initially at the top of the wedge, while Ball 2 of mass 5kg is at the ground. Height of the wedge is 10m and the length of the rope is 25m. The side of the wedge has friction. The co-efficient of friction is 0.5. Ball 1 slides down without rolling over the side of the wedge. When the first ball reaches the bottom, the second ball reaches the top of

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

Question

Two balls are tied by a
massless inextensible rope
over a pulley that is situated on
top of a wedge. Ball 1 of mass
30kg is initially at the top of
the wedge, while Ball 2 of mass
5kg is at the ground. Height of
the wedge is 10m and the
length of the rope is 25m. The
side of the wedge has friction.
The co-efficient of friction is
0.5. Ball 1 slides down without
rolling over the side of the
wedge. When the first ball
reaches the bottom, the
second ball reaches the top of

the wedge. At that moment,
what is the first ball's speed in
m/s? (Write upto two decimal
points)

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1. The three blocks in the figure are initially moving together to the right. Blocks B and C have mass m and block A has mass 4m. DO NOT NEGLECT FRICTION IN THIS PROBLEM. (a) Draw and label a free body diagram for each block. (b) Identify all Newton's 3rd Law pairs that appear in your diagrams. A (c) Is the normal force on C by A greater than, less than, or equal to the frictional force on C by the ground? Explain your reasoning. C
Blocks A, B, and C are placed as in Fig. and connected by ropes of negligible mass. Both A and B weigh 25.0 N each, and the coefficient of kinetic friction between each block and the surface is 0.35. Block C descends with constant velocity. (a) Draw separate free-body diagrams showing the forces acting on A and on B. (b) Find the tension in the rope connecting blocks A and B. (c) What is the weight of block C? (d) If the rope connecting A and B were cut, what would be the acceleration of C?
Problem 1. Find the horizontal force magnitude P needed to start the motion of the block with mass mo in two scenarios: (a) when P is applied to the right and (b) when P is applied to the left. Develop a general solution for each scenario, and subsequently, substitute the values 0= 25°, m = mo = 2.5 kg, µs = 0.40, and μk = 0.35 into your expressions for evaluation. Hgs H k P (a) A mo 0 m P (b) B
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use: A= 1kg and B=10 cm please answer quickly
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Two blocks of mass m1 = 2kg and m2 = 8kg are connected by a light string and a smooth pulley. block m1 lies on a smooth horizontal plane and block m2 lies on a rough inclined plane with a friction coefficient of 0.5 (see picture). first the two blocks are held still. The tension in the rope when the two blocks are released is ... (sin 37° = 0.6) 340