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Question

A contestant in a winter games event pushes a 50.0 kg block of ice across a frozen lake as shown in Figure

4.29(a). The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03.


4-29.gif

(a) Calculate the minimum force F he must exert to get the block moving.

 =N


(b) What is its acceleration once it starts to move, if that force is maintained?

 =m/s2

4-29.gif

Top Answer

a) minimum force F to get the block moving... View the full answer

IMG-20200125-WA0004.jpg

Given figure.
f cos 250
f
25
fsings
f
Component of f in vertical direction= fsin 250
component
of f in horizonal direction : f cos 250
, free body diagram of ice block
Ifsings
fcos 250
mg
as the...

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