8/18/2019 Assignment+Dynamics+No+2

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Assignment Dynamics No 2

Prepared by

Nor Azali Bin Azmir

8/18/2019 Assignment+Dynamics+No+2

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Question 1

The van is traveling at 20 m!h "hen the coupling o# 

the trailer at A #ails$ %# the trailer has a mass o# 2&0 g

and coasts '& m be#ore coming to rest( determine

the constant horizontal #orce ) created by rolling

#riction "hich causes the trailer to stop$

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Question 2

%# a #orce ) * 200 N is applied to the +0,g cart( sho"

that the 20,g bloc A "ill slide on the cart$ Also

determine the time #or bloc A to move on the cart

1$& m$ The coe##icients o# static and inetic #riction

bet"een the bloc and the cart are -s * 0$+ and - *

$ $ $

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Question +

Determine the height h o# the incline D to "hich the

200,g roller coaster car "ill reach( i# it is launched at

B "ith a speed .ust su##icient #or it to round the top

o# the loop at / "ithout leaving the trac$ The radius

o# curvature at / is c * 2& m$

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Question '

The roller,coaster car has a mass o# 00 g( including its

passenger$ %# it is released #rom rest at the top o# the

hill A( determine the minimum height h o# the hill so

that the car travels around both inside loops "ithout

leaving the trac$ Neglect #riction( the mass o# the

( $

reaction on the car "hen the car is at B and at /3

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Question &

The &,4g truc and 2,4g car are traveling "ith the

#ree,rolling velocities sho"n .ust be#ore they collide$

A#ter the collision( the car moves "ith a velocity o# 

1& m!h to the right relative to the truc$ Determine

the coe##icient o# restitution bet"een the truc and

$