Q7 of 57 Page 97

Repeat part (a) of problem 6 if the push is applied horizontally and not parallel to the incline.

mass of the body m= 2kg

Angle of inclination θ = 30o


Coefficient of static friction μ = 0.2




………………. (i)


And ………………………..(ii)


Substituting the value of R from equation (i)




Substitute the value of m, g, μ and θ




More from this chapter

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5

Suppose the block of the previous problem is pushed down the incline with a force of 4 N. How far will the block move in the first two seconds after starting from rest? The mass of the block is 4 kg.


 6

A body of mass 2 kg is lying on a rough inclined plane of inclination 30o. Find the magnitude of the force parallel to the incline needed to make the block move (a) up the incline (b) down the incline. Coefficient of static friction = 0.2.

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In a children-park an inclined plane is constructed with an angle of incline 45o in the middle part (figure 6-E1). Find the acceleration of a boy eliding on It if
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