FOR G-11 FROM UNIT-4* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of58N, at a constant velocity.a) Draw the free- body diagram.b) Determine the normal force.c) Determine the frictional force.d) Determine the coefficient of friction.* (2) Trolley is set move on a smooth track that is banked at angle of 30". For a trolley moving with aspeed of 8m /s to round the curve.a) Draw the free- body diagramb) what is the radius of the banked surface?* (3) Two billiard balls of equal mass undergo a perfectly elastic head- on collision. If the speed ofone ball was initially 2.00m/s, and of the other 3.00m/s in the opposite direction, what will be theirspeeds after the collision?* (4) A billiard ball moving at 10m/s along the +ve x – axis collides elastically with a second billiardball at rest. The balls have the same masses. After the collision, the incoming ball moves off at anangle of 37°, to the original direction of motion, and the second ball deflects at an angle 02 to thesame axis. Find the speeds of the two balls after collision and the angle 02.* (5)Consider a 4kg & 6kg blocks are sliding down an inclined plane whose inclinationfrom the horizontal is 370 .The blocks are in contact but are not fastened together asshown in figure - 1. (use sin370 = 0.6, Cos370 = 0.8 and g = 10m/s2)Mi= 4kgFind : (a) the contact force b/n mss-1 & 2H1 = 0.2M= 6kg(b)the acceleration the system.H2 = 0.4370(6) What horizontal force must be applied to the cart shown in Figure - 2, in orderthat the blocks remain stationary relative to the cart? Assume all surfaces, wheels, andpulley are frictionless. (Hint: Note that the force exerted by the string accelerates M.)Figure - 2Page 1

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* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of 58N, at a constant velocity. a) Draw the free- body diagram. b) Determine the normal force. c) Determine the frictional force. d) Determine the coefficient of friction. moth truck that is banked at angle of 30'. For a trolley moving with a

* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of 58N, at a constant velocity. a) Draw the free- body diagram. b) Determine the normal force. c) Determine the frictional force. d) Determine the coefficient of friction. moth truck that is banked at angle of 30'. For a trolley moving with a

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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Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

FOR G-11 FROM UNIT-4
* (1) A person is dragging a 15kg box along the ground by a rope 30' to the horizontal with a force of
58N, at a constant velocity.
a) Draw the free- body diagram.
b) Determine the normal force.
c) Determine the frictional force.
d) Determine the coefficient of friction.
* (2) Trolley is set move on a smooth track that is banked at angle of 30". For a trolley moving with a
speed of 8m /s to round the curve.
a) Draw the free- body diagram
b) what is the radius of the banked surface?
* (3) Two billiard balls of equal mass undergo a perfectly elastic head- on collision. If the speed of
one ball was initially 2.00m/s, and of the other 3.00m/s in the opposite direction, what will be their
speeds after the collision?
* (4) A billiard ball moving at 10m/s along the +ve x – axis collides elastically with a second billiard
ball at rest. The balls have the same masses. After the collision, the incoming ball moves off at an
angle of 37°, to the original direction of motion, and the second ball deflects at an angle 02 to the
same axis. Find the speeds of the two balls after collision and the angle 02.
* (5)Consider a 4kg & 6kg blocks are sliding down an inclined plane whose inclination
from the horizontal is 370 .The blocks are in contact but are not fastened together as
shown in figure - 1. (use sin370 = 0.6, Cos370 = 0.8 and g = 10m/s2)
Mi= 4kg
Find : (a) the contact force b/n mss-1 & 2
H1 = 0.2
M= 6kg
(b)the acceleration the system.
H2 = 0.4
370
(6) What horizontal force must be applied to the cart shown in Figure - 2, in order
that the blocks remain stationary relative to the cart? Assume all surfaces, wheels, and
pulley are frictionless. (Hint: Note that the force exerted by the string accelerates M.)
Figure - 2
Page 1

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